213174656 has 16 divisors (see below), whose sum is σ = 424684140. Its totient is φ = 106587264.

The previous prime is 213174653. The next prime is 213174659. The reversal of 213174656 is 656471312.

It is an interprime number because it is at equal distance from previous prime (213174653) and next prime (213174659).

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213174653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832586 + ... + 832841.

Almost surely, 2^213174656 is an apocalyptic number.

It is an amenable number.

213174656 is a deficient number, since it is larger than the sum of its proper divisors (211509484).

213174656 is an equidigital number, since it uses as much as digits as its factorization.

213174656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665441 (or 1665429 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 213174656 is about 14600.5019091811. The cubic root of 213174656 is about 597.3724508467.

The spelling of 213174656 in words is "two hundred thirteen million, one hundred seventy-four thousand, six hundred fifty-six".