990513019 has 2 divisors, whose sum is σ = 990513020. Its totient is φ = 990513018.

The previous prime is 990513011. The next prime is 990513049. The reversal of 990513019 is 910315099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990513019 - 2³ = 990513011 is a prime.

It is a super-2 number, since 2×990513019² = 1962232081616988722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (990513011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495256509 + 495256510.

It is an arithmetic number, because the mean of its divisors is an integer number (495256510).

Almost surely, 2^990513019 is an apocalyptic number.

990513019 is a deficient number, since it is larger than the sum of its proper divisors (1).

990513019 is an equidigital number, since it uses as much as digits as its factorization.

990513019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 990513019 is about 31472.4167962996. The cubic root of 990513019 is about 996.8276196452.

The spelling of 990513019 in words is "nine hundred ninety million, five hundred thirteen thousand, nineteen".