144434081 has 4 divisors (see below), whose sum is σ = 157564464. Its totient is φ = 131303700.

The previous prime is 144434039. The next prime is 144434107. The reversal of 144434081 is 180434441.

It is a happy number.

144434081 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: 180434441 = 11 ⋅16403131.

It is not a de Polignac number, because 144434081 - 2²⁶ = 77325217 is a prime.

It is a super-2 number, since 2×144434081² = 41722407508629122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144434681) 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, 6565175 + ... + 6565196.

It is an arithmetic number, because the mean of its divisors is an integer number (39391116).

Almost surely, 2^144434081 is an apocalyptic number.

144434081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144434081 is a deficient number, since it is larger than the sum of its proper divisors (13130383).

144434081 is a wasteful number, since it uses less digits than its factorization.

144434081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130382.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 144434081 is about 12018.0730984630. The cubic root of 144434081 is about 524.6744236851.

The spelling of 144434081 in words is "one hundred forty-four million, four hundred thirty-four thousand, eighty-one".