1509920164 has 6 divisors (see below), whose sum is σ = 2642360294. Its totient is φ = 754960080.

The previous prime is 1509920117. The next prime is 1509920179. The reversal of 1509920164 is 4610299051.

It can be written as a sum of positive squares in only one way, i.e., 1447193764 + 62726400 = 38042^2 + 7920^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188740017 + ... + 188740024.

Almost surely, 2^1509920164 is an apocalyptic number.

It is an amenable number.

1509920164 is a deficient number, since it is larger than the sum of its proper divisors (1132440130).

1509920164 is a wasteful number, since it uses less digits than its factorization.

1509920164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377480045 (or 377480043 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1509920164 is about 38857.6911820556. The cubic root of 1509920164 is about 1147.2322005648.

The spelling of 1509920164 in words is "one billion, five hundred nine million, nine hundred twenty thousand, one hundred sixty-four".