212051874 has 16 divisors (see below), whose sum is σ = 433127808. Its totient is φ = 69179952.

The previous prime is 212051869. The next prime is 212051891. The reversal of 212051874 is 478150212.

212051874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375697 + ... + 376260.

It is an arithmetic number, because the mean of its divisors is an integer number (27070488).

Almost surely, 2^212051874 is an apocalyptic number.

212051874 is an abundant number, since it is smaller than the sum of its proper divisors (221075934).

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

212051874 is a wasteful number, since it uses less digits than its factorization.

212051874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752009.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 212051874 is about 14562.0010300782. The cubic root of 212051874 is about 596.3218255751.

Subtracting from 212051874 its sum of digits (30), we obtain a square (212051844 = 14562²).

The spelling of 212051874 in words is "two hundred twelve million, fifty-one thousand, eight hundred seventy-four".