252901237 has 2 divisors, whose sum is σ = 252901238. Its totient is φ = 252901236.

The previous prime is 252901177. The next prime is 252901279. The reversal of 252901237 is 732109252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243079281 + 9821956 = 15591^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 252901237 - 2⁷ = 252901109 is a prime.

It is a super-3 number, since 3×252901237³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252901199 and 252901208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252908237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126450618 + 126450619.

It is an arithmetic number, because the mean of its divisors is an integer number (126450619).

Almost surely, 2^252901237 is an apocalyptic number.

It is an amenable number.

252901237 is a deficient number, since it is larger than the sum of its proper divisors (1).

252901237 is an equidigital number, since it uses as much as digits as its factorization.

252901237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 252901237 is about 15902.8688292396. The cubic root of 252901237 is about 632.3880449881.

The spelling of 252901237 in words is "two hundred fifty-two million, nine hundred one thousand, two hundred thirty-seven".