944145257 has 8 divisors (see below), whose sum is σ = 1065493440. Its totient is φ = 828716560.

The previous prime is 944145221. The next prime is 944145263. The reversal of 944145257 is 752541449.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 944145257 - 2¹² = 944141161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (944145217) 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 7 ways as a sum of consecutive naturals, for example, 1479533 + ... + 1480170.

It is an arithmetic number, because the mean of its divisors is an integer number (133186680).

Almost surely, 2^944145257 is an apocalyptic number.

It is an amenable number.

944145257 is a deficient number, since it is larger than the sum of its proper divisors (121348183).

944145257 is a wasteful number, since it uses less digits than its factorization.

944145257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959743.

The product of its digits is 201600, while the sum is 41.

The square root of 944145257 is about 30726.9467568777. The cubic root of 944145257 is about 981.0239391501.

The spelling of 944145257 in words is "nine hundred forty-four million, one hundred forty-five thousand, two hundred fifty-seven".