213352957 has 4 divisors (see below), whose sum is σ = 224582080. Its totient is φ = 202123836.

The previous prime is 213352891. The next prime is 213352967. The reversal of 213352957 is 759253312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213352957 - 2⁷ = 213352829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213352967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5614533 + ... + 5614570.

It is an arithmetic number, because the mean of its divisors is an integer number (56145520).

Almost surely, 2^213352957 is an apocalyptic number.

It is an amenable number.

213352957 is a deficient number, since it is larger than the sum of its proper divisors (11229123).

213352957 is a wasteful number, since it uses less digits than its factorization.

213352957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229122.

The product of its digits is 56700, while the sum is 37.

The square root of 213352957 is about 14606.6066216627. The cubic root of 213352957 is about 597.5389534778.

The spelling of 213352957 in words is "two hundred thirteen million, three hundred fifty-two thousand, nine hundred fifty-seven".