144884461 has 4 divisors (see below), whose sum is σ = 145000800. Its totient is φ = 144768124.

The previous prime is 144884449. The next prime is 144884491. The reversal of 144884461 is 164488441.

It is a happy number.

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: 164488441 = 13 ⋅12652957.

It is a cyclic number.

It is not a de Polignac number, because 144884461 - 2²⁵ = 111330029 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144884401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56281 + ... + 58798.

It is an arithmetic number, because the mean of its divisors is an integer number (36250200).

Almost surely, 2^144884461 is an apocalyptic number.

It is an amenable number.

144884461 is a deficient number, since it is larger than the sum of its proper divisors (116339).

144884461 is a wasteful number, since it uses less digits than its factorization.

144884461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116338.

The product of its digits is 98304, while the sum is 40.

The square root of 144884461 is about 12036.7961268770. The cubic root of 144884461 is about 525.2192112533.

The spelling of 144884461 in words is "one hundred forty-four million, eight hundred eighty-four thousand, four hundred sixty-one".