213556134 has 32 divisors (see below), whose sum is σ = 466462080. Its totient is φ = 64641600.

The previous prime is 213556121. The next prime is 213556151. The reversal of 213556134 is 431655312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105189 + ... + 107199.

It is an arithmetic number, because the mean of its divisors is an integer number (14576940).

Almost surely, 2^213556134 is an apocalyptic number.

213556134 is an abundant number, since it is smaller than the sum of its proper divisors (252905946).

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

213556134 is a wasteful number, since it uses less digits than its factorization.

213556134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636.

The product of its digits is 10800, while the sum is 30.

The square root of 213556134 is about 14613.5599358952. The cubic root of 213556134 is about 597.7285729944.

The spelling of 213556134 in words is "two hundred thirteen million, five hundred fifty-six thousand, one hundred thirty-four".