213512956 has 24 divisors (see below), whose sum is σ = 410417280. Its totient is φ = 96739632.

The previous prime is 213512947. The next prime is 213512969. The reversal of 213512956 is 659215312.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 59326 + ... + 62821.

It is an arithmetic number, because the mean of its divisors is an integer number (17100720).

Almost surely, 2^213512956 is an apocalyptic number.

It is an amenable number.

213512956 is a deficient number, since it is larger than the sum of its proper divisors (196904324).

213512956 is a wasteful number, since it uses less digits than its factorization.

213512956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122193 (or 122191 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 213512956 is about 14612.0825346697. The cubic root of 213512956 is about 597.6882862192.

The spelling of 213512956 in words is "two hundred thirteen million, five hundred twelve thousand, nine hundred fifty-six".