213746925 has 24 divisors (see below), whose sum is σ = 403880896. Its totient is φ = 97712640.

The previous prime is 213746917. The next prime is 213746957. The reversal of 213746925 is 529647312.

It is not a de Polignac number, because 213746925 - 2³ = 213746917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 203044 + ... + 204093.

Almost surely, 2^213746925 is an apocalyptic number.

213746925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213746925 is a deficient number, since it is larger than the sum of its proper divisors (190133971).

213746925 is a wasteful number, since it uses less digits than its factorization.

213746925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407157 (or 407152 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 213746925 is about 14620.0863540541. The cubic root of 213746925 is about 597.9065235336.

The spelling of 213746925 in words is "two hundred thirteen million, seven hundred forty-six thousand, nine hundred twenty-five".