213587975 has 12 divisors (see below), whose sum is σ = 270485664. Its totient is φ = 167233920.

The previous prime is 213587963. The next prime is 213587989. The reversal of 213587975 is 579785312.

It is not a de Polignac number, because 213587975 - 2⁸ = 213587719 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89714 + ... + 92063.

It is an arithmetic number, because the mean of its divisors is an integer number (22540472).

Almost surely, 2^213587975 is an apocalyptic number.

213587975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213587975 is a deficient number, since it is larger than the sum of its proper divisors (56897689).

213587975 is a wasteful number, since it uses less digits than its factorization.

213587975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181834 (or 181829 counting only the distinct ones).

The product of its digits is 529200, while the sum is 47.

The square root of 213587975 is about 14614.6493286702. The cubic root of 213587975 is about 597.7582784234.

The spelling of 213587975 in words is "two hundred thirteen million, five hundred eighty-seven thousand, nine hundred seventy-five".