252230747 has 4 divisors (see below), whose sum is σ = 252525240. Its totient is φ = 251936256.

The previous prime is 252230701. The next prime is 252230761. The reversal of 252230747 is 747032252.

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 252230747 - 2¹⁸ = 251968603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252230347) 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, 145958 + ... + 147675.

It is an arithmetic number, because the mean of its divisors is an integer number (63131310).

Almost surely, 2^252230747 is an apocalyptic number.

252230747 is a deficient number, since it is larger than the sum of its proper divisors (294493).

252230747 is an equidigital number, since it uses as much as digits as its factorization.

252230747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294492.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 252230747 is about 15881.7740507791. The cubic root of 252230747 is about 631.8286894483.

Adding to 252230747 its reverse (747032252), we get a palindrome (999262999).

The spelling of 252230747 in words is "two hundred fifty-two million, two hundred thirty thousand, seven hundred forty-seven".