225470157 has 16 divisors (see below), whose sum is σ = 339266880. Its totient is φ = 131936000.

The previous prime is 225470153. The next prime is 225470177. The reversal of 225470157 is 751074522.

It is a cyclic number.

It is not a de Polignac number, because 225470157 - 2² = 225470153 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225470153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116844 + ... + 118757.

It is an arithmetic number, because the mean of its divisors is an integer number (21204180).

Almost surely, 2^225470157 is an apocalyptic number.

It is an amenable number.

225470157 is a deficient number, since it is larger than the sum of its proper divisors (113796723).

225470157 is a wasteful number, since it uses less digits than its factorization.

225470157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235644.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 225470157 is about 15015.6637215942. The cubic root of 225470157 is about 608.6435477597.

The spelling of 225470157 in words is "two hundred twenty-five million, four hundred seventy thousand, one hundred fifty-seven".