252226137 has 32 divisors (see below), whose sum is σ = 368040960. Its totient is φ = 153216000.

The previous prime is 252226097. The next prime is 252226141. The reversal of 252226137 is 731622252.

It is not a de Polignac number, because 252226137 - 2²⁷ = 118008409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252226187) 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 31 ways as a sum of consecutive naturals, for example, 109437 + ... + 111717.

It is an arithmetic number, because the mean of its divisors is an integer number (11501280).

Almost surely, 2^252226137 is an apocalyptic number.

It is an amenable number.

252226137 is a deficient number, since it is larger than the sum of its proper divisors (115814823).

252226137 is a wasteful number, since it uses less digits than its factorization.

252226137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385.

The product of its digits is 10080, while the sum is 30.

The square root of 252226137 is about 15881.6289151963. The cubic root of 252226137 is about 631.8248401317.

Adding to 252226137 its reverse (731622252), we get a palindrome (983848389).

The spelling of 252226137 in words is "two hundred fifty-two million, two hundred twenty-six thousand, one hundred thirty-seven".