307972231 has 16 divisors (see below), whose sum is σ = 368782848. Its totient is φ = 251460000.

The previous prime is 307972229. The next prime is 307972283. The reversal of 307972231 is 132279703.

It is a cyclic number.

It is not a de Polignac number, because 307972231 - 2¹ = 307972229 is a prime.

It is a super-2 number, since 2×307972231² = 189693790134234722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307972531) 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 15 ways as a sum of consecutive naturals, for example, 36601 + ... + 44221.

It is an arithmetic number, because the mean of its divisors is an integer number (23048928).

Almost surely, 2^307972231 is an apocalyptic number.

307972231 is a deficient number, since it is larger than the sum of its proper divisors (60810617).

307972231 is a wasteful number, since it uses less digits than its factorization.

307972231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 307972231 is about 17549.1376141393. The cubic root of 307972231 is about 675.3110453061.

The spelling of 307972231 in words is "three hundred seven million, nine hundred seventy-two thousand, two hundred thirty-one".