212632715 has 4 divisors (see below), whose sum is σ = 255159264. Its totient is φ = 170106168.

The previous prime is 212632711. The next prime is 212632729. The reversal of 212632715 is 517236212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212632715 - 2² = 212632711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212632711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21263267 + ... + 21263276.

It is an arithmetic number, because the mean of its divisors is an integer number (63789816).

Almost surely, 2^212632715 is an apocalyptic number.

212632715 is a deficient number, since it is larger than the sum of its proper divisors (42526549).

212632715 is an equidigital number, since it uses as much as digits as its factorization.

212632715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42526548.

The product of its digits is 5040, while the sum is 29.

The square root of 212632715 is about 14581.9311135391. The cubic root of 212632715 is about 596.8658000099.

Adding to 212632715 its reverse (517236212), we get a palindrome (729868927).

The spelling of 212632715 in words is "two hundred twelve million, six hundred thirty-two thousand, seven hundred fifteen".