999013459 has 2 divisors, whose sum is σ = 999013460. Its totient is φ = 999013458.

The previous prime is 999013439. The next prime is 999013507. The reversal of 999013459 is 954310999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999013459 - 2¹¹ = 999011411 is a prime.

It is not a weakly prime, because it can be changed into another prime (999013439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499506729 + 499506730.

It is an arithmetic number, because the mean of its divisors is an integer number (499506730).

Almost surely, 2^999013459 is an apocalyptic number.

999013459 is a deficient number, since it is larger than the sum of its proper divisors (1).

999013459 is an equidigital number, since it uses as much as digits as its factorization.

999013459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 999013459 is about 31607.1741697989. The cubic root of 999013459 is about 999.6710448003.

The spelling of 999013459 in words is "nine hundred ninety-nine million, thirteen thousand, four hundred fifty-nine".