944881137 has 12 divisors (see below), whose sum is σ = 1365096720. Its totient is φ = 629796888.

The previous prime is 944881129. The next prime is 944881177. The reversal of 944881137 is 731188449.

It is a happy number.

It is not a de Polignac number, because 944881137 - 2³ = 944881129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 944881092 and 944881101.

It is not an unprimeable number, because it can be changed into a prime (944881177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75814 + ... + 87392.

It is an arithmetic number, because the mean of its divisors is an integer number (113758060).

Almost surely, 2^944881137 is an apocalyptic number.

It is an amenable number.

944881137 is a deficient number, since it is larger than the sum of its proper divisors (420215583).

944881137 is a wasteful number, since it uses less digits than its factorization.

944881137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20652 (or 20649 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 944881137 is about 30738.9189302422. The cubic root of 944881137 is about 981.2787475478.

The spelling of 944881137 in words is "nine hundred forty-four million, eight hundred eighty-one thousand, one hundred thirty-seven".