225370971 has 32 divisors (see below), whose sum is σ = 382279680. Its totient is φ = 128547648.

The previous prime is 225370933. The next prime is 225370987. The reversal of 225370971 is 179073522.

It is not a de Polignac number, because 225370971 - 2⁷ = 225370843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225370991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204895 + ... + 205991.

It is an arithmetic number, because the mean of its divisors is an integer number (11946240).

Almost surely, 2^225370971 is an apocalyptic number.

225370971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

225370971 is a deficient number, since it is larger than the sum of its proper divisors (156908709).

225370971 is a wasteful number, since it uses less digits than its factorization.

225370971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 225370971 is about 15012.3606071797. The cubic root of 225370971 is about 608.5542857273.

The spelling of 225370971 in words is "two hundred twenty-five million, three hundred seventy thousand, nine hundred seventy-one".