252101135 has 16 divisors (see below), whose sum is σ = 355410720. Its totient is φ = 169242240.

The previous prime is 252101123. The next prime is 252101149. The reversal of 252101135 is 531101252.

It is a happy number.

It is not a de Polignac number, because 252101135 - 2⁶ = 252101071 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 175580 + ... + 177009.

It is an arithmetic number, because the mean of its divisors is an integer number (22213170).

Almost surely, 2^252101135 is an apocalyptic number.

252101135 is a deficient number, since it is larger than the sum of its proper divisors (103309585).

252101135 is a wasteful number, since it uses less digits than its factorization.

252101135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352618.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 252101135 is about 15877.6929999292. The cubic root of 252101135 is about 631.7204464839.

Adding to 252101135 its reverse (531101252), we get a palindrome (783202387).

The spelling of 252101135 in words is "two hundred fifty-two million, one hundred one thousand, one hundred thirty-five".