307142252 has 12 divisors (see below), whose sum is σ = 538397496. Its totient is φ = 153314400.

The previous prime is 307142191. The next prime is 307142257. The reversal of 307142252 is 252241703.

It is not an unprimeable number, because it can be changed into a prime (307142257) 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, 61478 + ... + 66285.

It is an arithmetic number, because the mean of its divisors is an integer number (44866458).

Almost surely, 2^307142252 is an apocalyptic number.

It is an amenable number.

307142252 is a deficient number, since it is larger than the sum of its proper divisors (231255244).

307142252 is a wasteful number, since it uses less digits than its factorization.

307142252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128368 (or 128366 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 307142252 is about 17525.4743730377. The cubic root of 307142252 is about 674.7038496009.

Adding to 307142252 its reverse (252241703), we get a palindrome (559383955).

The spelling of 307142252 in words is "three hundred seven million, one hundred forty-two thousand, two hundred fifty-two".