252307147 has 4 divisors (see below), whose sum is σ = 253118736. Its totient is φ = 251495560.

The previous prime is 252307141. The next prime is 252307157. The reversal of 252307147 is 741703252.

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 252307147 - 2²³ = 243918539 is a prime.

It is a super-3 number, since 3×252307147³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252307141) 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, 405328 + ... + 405949.

It is an arithmetic number, because the mean of its divisors is an integer number (63279684).

Almost surely, 2^252307147 is an apocalyptic number.

252307147 is a deficient number, since it is larger than the sum of its proper divisors (811589).

252307147 is an equidigital number, since it uses as much as digits as its factorization.

252307147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811588.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 252307147 is about 15884.1791415232. The cubic root of 252307147 is about 631.8924760662.

The spelling of 252307147 in words is "two hundred fifty-two million, three hundred seven thousand, one hundred forty-seven".