212964625 has 8 divisors (see below), whose sum is σ = 265780008. Its totient is φ = 170371600.

The previous prime is 212964623. The next prime is 212964643. The reversal of 212964625 is 526469212.

It can be written as a sum of positive squares in 4 ways, for example, as 5345344 + 207619281 = 2312^2 + 14409^2 .

It is not a de Polignac number, because 212964625 - 2¹ = 212964623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212964623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851734 + ... + 851983.

It is an arithmetic number, because the mean of its divisors is an integer number (33222501).

Almost surely, 2^212964625 is an apocalyptic number.

212964625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212964625 is a deficient number, since it is larger than the sum of its proper divisors (52815383).

212964625 is an equidigital number, since it uses as much as digits as its factorization.

212964625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703732 (or 1703722 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 212964625 is about 14593.3075414726. The cubic root of 212964625 is about 597.1761986848.

It can be divided in two parts, 21296 and 4625, that added together give a square (25921 = 161²).

The spelling of 212964625 in words is "two hundred twelve million, nine hundred sixty-four thousand, six hundred twenty-five".