212704125 has 32 divisors (see below), whose sum is σ = 366163200. Its totient is φ = 109524800.

The previous prime is 212704111. The next prime is 212704159. The reversal of 212704125 is 521407212.

It is not a de Polignac number, because 212704125 - 2²¹ = 210606973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212704095 and 212704104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1096 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (11442600).

Almost surely, 2^212704125 is an apocalyptic number.

212704125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212704125 is a deficient number, since it is larger than the sum of its proper divisors (153459075).

212704125 is a wasteful number, since it uses less digits than its factorization.

212704125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19606 (or 19596 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 212704125 is about 14584.3794862860. The cubic root of 212704125 is about 596.9326091339.

The spelling of 212704125 in words is "two hundred twelve million, seven hundred four thousand, one hundred twenty-five".