252131155202 has 8 divisors (see below), whose sum is σ = 388418266236. Its totient is φ = 122658399792.

The previous prime is 252131155183. The next prime is 252131155207. The reversal of 252131155202 is 202551131252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171122041561 + 81009113641 = 413669^2 + 284621^2 .

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

It is not an unprimeable number, because it can be changed into a prime (252131155207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703588813 + ... + 1703588960.

Almost surely, 2^252131155202 is an apocalyptic number.

252131155202 is a deficient number, since it is larger than the sum of its proper divisors (136287111034).

252131155202 is a wasteful number, since it uses less digits than its factorization.

252131155202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407177812.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 252131155202 its reverse (202551131252), we get a palindrome (454682286454).

The spelling of 252131155202 in words is "two hundred fifty-two billion, one hundred thirty-one million, one hundred fifty-five thousand, two hundred two".