1521563164 has 12 divisors (see below), whose sum is σ = 2904802488. Its totient is φ = 691619600.

The previous prime is 1521563161. The next prime is 1521563201. The reversal of 1521563164 is 4613651251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521563161) 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, 17290447 + ... + 17290534.

It is an arithmetic number, because the mean of its divisors is an integer number (242066874).

Almost surely, 2^1521563164 is an apocalyptic number.

It is an amenable number.

1521563164 is a deficient number, since it is larger than the sum of its proper divisors (1383239324).

1521563164 is a wasteful number, since it uses less digits than its factorization.

1521563164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34580996 (or 34580994 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 1521563164 is about 39007.2193830834. The cubic root of 1521563164 is about 1150.1734241293.

The spelling of 1521563164 in words is "one billion, five hundred twenty-one million, five hundred sixty-three thousand, one hundred sixty-four".