212500854 has 32 divisors (see below), whose sum is σ = 474012000. Its totient is φ = 70565472.

The previous prime is 212500853. The next prime is 212500861. The reversal of 212500854 is 458005212.

It is a happy number.

It is a super-2 number, since 2×212500854² = 90313225901458632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212500853) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7212 + ... + 21840.

It is an arithmetic number, because the mean of its divisors is an integer number (14812875).

Almost surely, 2^212500854 is an apocalyptic number.

212500854 is an abundant number, since it is smaller than the sum of its proper divisors (261511146).

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

212500854 is a wasteful number, since it uses less digits than its factorization.

212500854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14909 (or 14903 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 212500854 is about 14577.4090290422. The cubic root of 212500854 is about 596.7423953623.

The spelling of 212500854 in words is "two hundred twelve million, five hundred thousand, eight hundred fifty-four".