252837157 has 2 divisors, whose sum is σ = 252837158. Its totient is φ = 252837156.

The previous prime is 252837149. The next prime is 252837223. The reversal of 252837157 is 751738252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205033761 + 47803396 = 14319^2 + 6914^2 .

It is a cyclic number.

It is not a de Polignac number, because 252837157 - 2³ = 252837149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252837757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126418578 + 126418579.

It is an arithmetic number, because the mean of its divisors is an integer number (126418579).

Almost surely, 2^252837157 is an apocalyptic number.

It is an amenable number.

252837157 is a deficient number, since it is larger than the sum of its proper divisors (1).

252837157 is an equidigital number, since it uses as much as digits as its factorization.

252837157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 252837157 is about 15900.8539707778. The cubic root of 252837157 is about 632.3346290783.

The spelling of 252837157 in words is "two hundred fifty-two million, eight hundred thirty-seven thousand, one hundred fifty-seven".