212874518 has 16 divisors (see below), whose sum is σ = 336837120. Its totient is φ = 100619496.

The previous prime is 212874503. The next prime is 212874521. The reversal of 212874518 is 815478212.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 12755 + ... + 24257.

It is an arithmetic number, because the mean of its divisors is an integer number (21052320).

Almost surely, 2^212874518 is an apocalyptic number.

212874518 is a deficient number, since it is larger than the sum of its proper divisors (123962602).

212874518 is a wasteful number, since it uses less digits than its factorization.

212874518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011.

The product of its digits is 35840, while the sum is 38.

The square root of 212874518 is about 14590.2199435101. The cubic root of 212874518 is about 597.0919634953.

The spelling of 212874518 in words is "two hundred twelve million, eight hundred seventy-four thousand, five hundred eighteen".