252567138 has 8 divisors (see below), whose sum is σ = 505134288. Its totient is φ = 84189044.

The previous prime is 252567127. The next prime is 252567149. The reversal of 252567138 is 831765252.

It is an interprime number because it is at equal distance from previous prime (252567127) and next prime (252567149).

It is a sphenic number, since it is the product of 3 distinct primes.

252567138 is an admirable number.

It is a super-3 number, since 3×252567138³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 252567096 and 252567105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21047256 + ... + 21047267.

It is an arithmetic number, because the mean of its divisors is an integer number (63141786).

Almost surely, 2^252567138 is an apocalyptic number.

252567138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252567138 is a wasteful number, since it uses less digits than its factorization.

252567138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094528.

The product of its digits is 100800, while the sum is 39.

The square root of 252567138 is about 15892.3609951448. The cubic root of 252567138 is about 632.1094470097.

The spelling of 252567138 in words is "two hundred fifty-two million, five hundred sixty-seven thousand, one hundred thirty-eight".