252904187 has 2 divisors, whose sum is σ = 252904188. Its totient is φ = 252904186.

The previous prime is 252904151. The next prime is 252904207. The reversal of 252904187 is 781409252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252904187 - 2²² = 248709883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252904187.

It is not a weakly prime, because it can be changed into another prime (252904147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126452093 + 126452094.

It is an arithmetic number, because the mean of its divisors is an integer number (126452094).

Almost surely, 2^252904187 is an apocalyptic number.

252904187 is a deficient number, since it is larger than the sum of its proper divisors (1).

252904187 is an equidigital number, since it uses as much as digits as its factorization.

252904187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 252904187 is about 15902.9615795298. The cubic root of 252904187 is about 632.3905038366.

The spelling of 252904187 in words is "two hundred fifty-two million, nine hundred four thousand, one hundred eighty-seven".