945945231 has 16 divisors (see below), whose sum is σ = 1572480768. Its totient is φ = 491400000.

The previous prime is 945945199. The next prime is 945945233. The reversal of 945945231 is 132549549.

It is not a de Polignac number, because 945945231 - 2⁵ = 945945199 is a prime.

It is a super-2 number, since 2×945945231² = 1789624760103286722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945945233) 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 15 ways as a sum of consecutive naturals, for example, 2047270 + ... + 2047731.

It is an arithmetic number, because the mean of its divisors is an integer number (98280048).

Almost surely, 2^945945231 is an apocalyptic number.

945945231 is a deficient number, since it is larger than the sum of its proper divisors (626535537).

945945231 is a wasteful number, since it uses less digits than its factorization.

945945231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095022.

The product of its digits is 194400, while the sum is 42.

The square root of 945945231 is about 30756.2226386792. Note that the first 3 decimals coincide. The cubic root of 945945231 is about 981.6469706187.

The spelling of 945945231 in words is "nine hundred forty-five million, nine hundred forty-five thousand, two hundred thirty-one".