214521612 has 24 divisors (see below), whose sum is σ = 516698112. Its totient is φ = 69200400.

The previous prime is 214521607. The next prime is 214521631. The reversal of 214521612 is 216125412.

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 287964 + ... + 288707.

It is an arithmetic number, because the mean of its divisors is an integer number (21529088).

Almost surely, 2^214521612 is an apocalyptic number.

It is an amenable number.

214521612 is an abundant number, since it is smaller than the sum of its proper divisors (302176500).

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

214521612 is a wasteful number, since it uses less digits than its factorization.

214521612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576709 (or 576707 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 214521612 is about 14646.5563188075. The cubic root of 214521612 is about 598.6279872486.

The spelling of 214521612 in words is "two hundred fourteen million, five hundred twenty-one thousand, six hundred twelve".