212464523 has 4 divisors (see below), whose sum is σ = 214137600. Its totient is φ = 210791448.

The previous prime is 212464513. The next prime is 212464531. The reversal of 212464523 is 325464212.

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 212464523 - 2⁴ = 212464507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212464513) 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, 836348 + ... + 836601.

It is an arithmetic number, because the mean of its divisors is an integer number (53534400).

Almost surely, 2^212464523 is an apocalyptic number.

212464523 is a deficient number, since it is larger than the sum of its proper divisors (1673077).

212464523 is a wasteful number, since it uses less digits than its factorization.

212464523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673076.

The product of its digits is 11520, while the sum is 29.

The square root of 212464523 is about 14576.1628352595. The cubic root of 212464523 is about 596.7083853286.

The spelling of 212464523 in words is "two hundred twelve million, four hundred sixty-four thousand, five hundred twenty-three".