1521488879 has 2 divisors, whose sum is σ = 1521488880. Its totient is φ = 1521488878.

The previous prime is 1521488867. The next prime is 1521488957. The reversal of 1521488879 is 9788841251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1521488879 - 2²⁰ = 1520440303 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1521488879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1521488179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760744439 + 760744440.

It is an arithmetic number, because the mean of its divisors is an integer number (760744440).

Almost surely, 2^1521488879 is an apocalyptic number.

1521488879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521488879 is an equidigital number, since it uses as much as digits as its factorization.

1521488879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 53.

The square root of 1521488879 is about 39006.2671759296. The cubic root of 1521488879 is about 1150.1547060930.

The spelling of 1521488879 in words is "one billion, five hundred twenty-one million, four hundred eighty-eight thousand, eight hundred seventy-nine".