213461925 has 24 divisors (see below), whose sum is σ = 353575584. Its totient is φ = 113636160.

The previous prime is 213461923. The next prime is 213461929. The reversal of 213461925 is 529164312.

It is not a de Polignac number, because 213461925 - 2¹ = 213461923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213461923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43654 + ... + 48296.

It is an arithmetic number, because the mean of its divisors is an integer number (14732316).

Almost surely, 2^213461925 is an apocalyptic number.

213461925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213461925 is a deficient number, since it is larger than the sum of its proper divisors (140113659).

213461925 is a wasteful number, since it uses less digits than its factorization.

213461925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269 (or 5264 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 213461925 is about 14610.3362384307. The cubic root of 213461925 is about 597.6406652820.

The spelling of 213461925 in words is "two hundred thirteen million, four hundred sixty-one thousand, nine hundred twenty-five".