522149923 has 4 divisors (see below), whose sum is σ = 522726520. Its totient is φ = 521573328.

The previous prime is 522149921. The next prime is 522149977. The reversal of 522149923 is 329941225.

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 522149923 - 2¹ = 522149921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522149921) 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, 286938 + ... + 288751.

It is an arithmetic number, because the mean of its divisors is an integer number (130681630).

Almost surely, 2^522149923 is an apocalyptic number.

522149923 is a deficient number, since it is larger than the sum of its proper divisors (576597).

522149923 is an equidigital number, since it uses as much as digits as its factorization.

522149923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576596.

The product of its digits is 38880, while the sum is 37.

The square root of 522149923 is about 22850.6000577665. The cubic root of 522149923 is about 805.2518651729.

The spelling of 522149923 in words is "five hundred twenty-two million, one hundred forty-nine thousand, nine hundred twenty-three".