212316538 has 16 divisors (see below), whose sum is σ = 364163904. Its totient is φ = 90944640.

The previous prime is 212316527. The next prime is 212316541. The reversal of 212316538 is 835613212.

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, 40081 + ... + 45067.

It is an arithmetic number, because the mean of its divisors is an integer number (22760244).

Almost surely, 2^212316538 is an apocalyptic number.

212316538 is a deficient number, since it is larger than the sum of its proper divisors (151847366).

212316538 is a wasteful number, since it uses less digits than its factorization.

212316538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037.

The product of its digits is 8640, while the sum is 31.

The square root of 212316538 is about 14571.0856836407. The cubic root of 212316538 is about 596.5698141156.

The spelling of 212316538 in words is "two hundred twelve million, three hundred sixteen thousand, five hundred thirty-eight".