213125475 has 24 divisors (see below), whose sum is σ = 367690752. Its totient is φ = 108724000.

The previous prime is 213125443. The next prime is 213125519. The reversal of 213125475 is 574521312.

It is not a de Polignac number, because 213125475 - 2⁵ = 213125443 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60051 + ... + 63500.

It is an arithmetic number, because the mean of its divisors is an integer number (15320448).

Almost surely, 2^213125475 is an apocalyptic number.

213125475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213125475 is a deficient number, since it is larger than the sum of its proper divisors (154565277).

213125475 is a wasteful number, since it uses less digits than its factorization.

213125475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123587 (or 123582 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 213125475 is about 14598.8175891063. The cubic root of 213125475 is about 597.3265078710.

Adding to 213125475 its reverse (574521312), we get a palindrome (787646787).

The spelling of 213125475 in words is "two hundred thirteen million, one hundred twenty-five thousand, four hundred seventy-five".