212042315 has 4 divisors (see below), whose sum is σ = 254450784. Its totient is φ = 169633848.

The previous prime is 212042269. The next prime is 212042339. The reversal of 212042315 is 513240212.

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 212042315 - 2²⁴ = 195265099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21204227 + ... + 21204236.

It is an arithmetic number, because the mean of its divisors is an integer number (63612696).

Almost surely, 2^212042315 is an apocalyptic number.

212042315 is a deficient number, since it is larger than the sum of its proper divisors (42408469).

212042315 is an equidigital number, since it uses as much as digits as its factorization.

212042315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42408468.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212042315 is about 14561.6728091246. The cubic root of 212042315 is about 596.3128649910.

Adding to 212042315 its reverse (513240212), we get a palindrome (725282527).

The spelling of 212042315 in words is "two hundred twelve million, forty-two thousand, three hundred fifteen".