210557164 has 12 divisors (see below), whose sum is σ = 387868600. Its totient is φ = 99737568.

The previous prime is 210557141. The next prime is 210557167. The reversal of 210557164 is 461755012.

210557164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (210557167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385169 + ... + 1385320.

Almost surely, 2^210557164 is an apocalyptic number.

It is an amenable number.

210557164 is a deficient number, since it is larger than the sum of its proper divisors (177311436).

210557164 is a wasteful number, since it uses less digits than its factorization.

210557164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770512 (or 2770510 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 210557164 is about 14510.5879963563. The cubic root of 210557164 is about 594.9174039716.

The spelling of 210557164 in words is "two hundred ten million, five hundred fifty-seven thousand, one hundred sixty-four".