229370257 has 4 divisors (see below), whose sum is σ = 232600896. Its totient is φ = 226139620.

The previous prime is 229370233. The next prime is 229370263. The reversal of 229370257 is 752073922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229370257 is a prime.

It is a super-2 number, since 2×229370257² = 105221429592492098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229370357) 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, 1615213 + ... + 1615354.

It is an arithmetic number, because the mean of its divisors is an integer number (58150224).

Almost surely, 2^229370257 is an apocalyptic number.

It is an amenable number.

229370257 is a deficient number, since it is larger than the sum of its proper divisors (3230639).

229370257 is an equidigital number, since it uses as much as digits as its factorization.

229370257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230638.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 229370257 is about 15144.9746450762. The cubic root of 229370257 is about 612.1328696444.

The spelling of 229370257 in words is "two hundred twenty-nine million, three hundred seventy thousand, two hundred fifty-seven".