212620125 has 16 divisors (see below), whose sum is σ = 353800512. Its totient is φ = 113397200.

The previous prime is 212620097. The next prime is 212620147. The reversal of 212620125 is 521026212.

It is a happy number.

It is not a de Polignac number, because 212620125 - 2⁶ = 212620061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283119 + ... + 283868.

It is an arithmetic number, because the mean of its divisors is an integer number (22112532).

Almost surely, 2^212620125 is an apocalyptic number.

212620125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212620125 is a deficient number, since it is larger than the sum of its proper divisors (141180387).

212620125 is an equidigital number, since it uses as much as digits as its factorization.

212620125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567005 (or 566995 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 212620125 is about 14581.4994084971. The cubic root of 212620125 is about 596.8540196202.

Adding to 212620125 its reverse (521026212), we get a palindrome (733646337).

The spelling of 212620125 in words is "two hundred twelve million, six hundred twenty thousand, one hundred twenty-five".