1520799131 has 2 divisors, whose sum is σ = 1520799132. Its totient is φ = 1520799130.

The previous prime is 1520799127. The next prime is 1520799151. The reversal of 1520799131 is 1319970251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1520799131 - 2² = 1520799127 is a prime.

It is a super-2 number, since 2×1520799131² = 4625659993700710322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1520799151) 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, 760399565 + 760399566.

It is an arithmetic number, because the mean of its divisors is an integer number (760399566).

Almost surely, 2^1520799131 is an apocalyptic number.

1520799131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520799131 is an equidigital number, since it uses as much as digits as its factorization.

1520799131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 1520799131 is about 38997.4246713805. The cubic root of 1520799131 is about 1149.9808770607.

The spelling of 1520799131 in words is "one billion, five hundred twenty million, seven hundred ninety-nine thousand, one hundred thirty-one".