212252534 has 16 divisors (see below), whose sum is σ = 360916080. Its totient is φ = 92806560.

The previous prime is 212252527. The next prime is 212252561. The reversal of 212252534 is 435252212.

It is a super-2 number, since 2×212252534² = 90102276378842312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214337 + ... + 215324.

It is an arithmetic number, because the mean of its divisors is an integer number (22557255).

Almost surely, 2^212252534 is an apocalyptic number.

212252534 is a deficient number, since it is larger than the sum of its proper divisors (148663546).

212252534 is a wasteful number, since it uses less digits than its factorization.

212252534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429695.

The product of its digits is 4800, while the sum is 26.

The square root of 212252534 is about 14568.8892507288. The cubic root of 212252534 is about 596.5098616625.

The spelling of 212252534 in words is "two hundred twelve million, two hundred fifty-two thousand, five hundred thirty-four".