212474534 has 12 divisors (see below), whose sum is σ = 338563284. Its totient is φ = 99987744.

The previous prime is 212474519. The next prime is 212474543. The reversal of 212474534 is 435474212.

It is a self number, because there is not a number n which added to its sum of digits gives 212474534.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 183224 + ... + 184379.

It is an arithmetic number, because the mean of its divisors is an integer number (28213607).

Almost surely, 2^212474534 is an apocalyptic number.

212474534 is a deficient number, since it is larger than the sum of its proper divisors (126088750).

212474534 is a wasteful number, since it uses less digits than its factorization.

212474534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367639 (or 367622 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 212474534 is about 14576.5062343485. The cubic root of 212474534 is about 596.7177571737.

The spelling of 212474534 in words is "two hundred twelve million, four hundred seventy-four thousand, five hundred thirty-four".