144897841 has 4 divisors (see below), whose sum is σ = 158070384. Its totient is φ = 131725300.

The previous prime is 144897829. The next prime is 144897853. The reversal of 144897841 is 148798441.

144897841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148798441 = 11 ⋅13527131.

It is an interprime number because it is at equal distance from previous prime (144897829) and next prime (144897853).

It is a cyclic number.

It is not a de Polignac number, because 144897841 - 2⁷ = 144897713 is a prime.

It is a super-2 number, since 2×144897841² = 41990768652922562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144897791 and 144897800.

It is not an unprimeable number, because it can be changed into a prime (144897541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6586255 + ... + 6586276.

It is an arithmetic number, because the mean of its divisors is an integer number (39517596).

Almost surely, 2^144897841 is an apocalyptic number.

144897841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144897841 is a deficient number, since it is larger than the sum of its proper divisors (13172543).

144897841 is a wasteful number, since it uses less digits than its factorization.

144897841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13172542.

The product of its digits is 258048, while the sum is 46.

The square root of 144897841 is about 12037.3519097848. The cubic root of 144897841 is about 525.2353786571.

The spelling of 144897841 in words is "one hundred forty-four million, eight hundred ninety-seven thousand, eight hundred forty-one".