213874625 has 8 divisors (see below), whose sum is σ = 266915688. Its totient is φ = 171099600.

The previous prime is 213874613. The next prime is 213874643. The reversal of 213874625 is 526478312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1181569 + 212693056 = 1087^2 + 14584^2 .

It is not a de Polignac number, because 213874625 - 2¹⁴ = 213858241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855374 + ... + 855623.

It is an arithmetic number, because the mean of its divisors is an integer number (33364461).

Almost surely, 2^213874625 is an apocalyptic number.

213874625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213874625 is a deficient number, since it is larger than the sum of its proper divisors (53041063).

213874625 is an equidigital number, since it uses as much as digits as its factorization.

213874625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711012 (or 1711002 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 213874625 is about 14624.4529812229. The cubic root of 213874625 is about 598.0255700225.

The spelling of 213874625 in words is "two hundred thirteen million, eight hundred seventy-four thousand, six hundred twenty-five".