252015512143 has 4 divisors (see below), whose sum is σ = 252663367320. Its totient is φ = 251367656968.

The previous prime is 252015512129. The next prime is 252015512159. The reversal of 252015512143 is 341215510252.

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 252015512143 - 2²⁹ = 251478641231 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 (252015512443) 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, 323927005 + ... + 323927782.

It is an arithmetic number, because the mean of its divisors is an integer number (63165841830).

Almost surely, 2^252015512143 is an apocalyptic number.

252015512143 is a deficient number, since it is larger than the sum of its proper divisors (647855177).

252015512143 is an equidigital number, since it uses as much as digits as its factorization.

252015512143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647855176.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 252015512143 in words is "two hundred fifty-two billion, fifteen million, five hundred twelve thousand, one hundred forty-three".