213875286 has 64 divisors (see below), whose sum is σ = 464486400. Its totient is φ = 65438496.

The previous prime is 213875273. The next prime is 213875339. The reversal of 213875286 is 682578312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958971 + ... + 959193.

It is an arithmetic number, because the mean of its divisors is an integer number (7257600).

Almost surely, 2^213875286 is an apocalyptic number.

213875286 is an abundant number, since it is smaller than the sum of its proper divisors (250611114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213875286 is a wasteful number, since it uses less digits than its factorization.

213875286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 161280, while the sum is 42.

The square root of 213875286 is about 14624.4755803413. The cubic root of 213875286 is about 598.0261861070.

The spelling of 213875286 in words is "two hundred thirteen million, eight hundred seventy-five thousand, two hundred eighty-six".