213554012 has 12 divisors (see below), whose sum is σ = 427108080. Its totient is φ = 91523136.

The previous prime is 213553979. The next prime is 213554021. The reversal of 213554012 is 210455312.

213554012 is an admirable number.

It is a super-2 number, since 2×213554012² = 91210632082592288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3813437 + ... + 3813492.

It is an arithmetic number, because the mean of its divisors is an integer number (35592340).

Almost surely, 2^213554012 is an apocalyptic number.

It is an amenable number.

213554012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213554012 is a wasteful number, since it uses less digits than its factorization.

213554012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626940 (or 7626938 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 213554012 is about 14613.4873319136. The cubic root of 213554012 is about 597.7265932117.

The spelling of 213554012 in words is "two hundred thirteen million, five hundred fifty-four thousand, twelve".