990113459 has 2 divisors, whose sum is σ = 990113460. Its totient is φ = 990113458.

The previous prime is 990113437. The next prime is 990113461. The reversal of 990113459 is 954311099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 990113459 - 2¹⁶ = 990047923 is a prime.

Together with 990113461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990113419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495056729 + 495056730.

It is an arithmetic number, because the mean of its divisors is an integer number (495056730).

Almost surely, 2^990113459 is an apocalyptic number.

990113459 is a deficient number, since it is larger than the sum of its proper divisors (1).

990113459 is an equidigital number, since it uses as much as digits as its factorization.

990113459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 990113459 is about 31466.0683753150. The cubic root of 990113459 is about 996.6935658759.

The spelling of 990113459 in words is "nine hundred ninety million, one hundred thirteen thousand, four hundred fifty-nine".