252153791 has 4 divisors (see below), whose sum is σ = 252358872. Its totient is φ = 251948712.

The previous prime is 252153773. The next prime is 252153793. The reversal of 252153791 is 197351252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252153791 - 2¹⁴ = 252137407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252153793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100685 + ... + 103158.

It is an arithmetic number, because the mean of its divisors is an integer number (63089718).

Almost surely, 2^252153791 is an apocalyptic number.

252153791 is a deficient number, since it is larger than the sum of its proper divisors (205081).

252153791 is a wasteful number, since it uses less digits than its factorization.

252153791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205080.

The product of its digits is 18900, while the sum is 35.

The square root of 252153791 is about 15879.3510887567. The cubic root of 252153791 is about 631.7644256012.

The spelling of 252153791 in words is "two hundred fifty-two million, one hundred fifty-three thousand, seven hundred ninety-one".