999002051 has 2 divisors, whose sum is σ = 999002052. Its totient is φ = 999002050.

The previous prime is 999001999. The next prime is 999002057. The reversal of 999002051 is 150200999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999002051 - 2²⁶ = 931893187 is a prime.

It is not a weakly prime, because it can be changed into another prime (999002057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499501025 + 499501026.

It is an arithmetic number, because the mean of its divisors is an integer number (499501026).

Almost surely, 2^999002051 is an apocalyptic number.

999002051 is a deficient number, since it is larger than the sum of its proper divisors (1).

999002051 is an equidigital number, since it uses as much as digits as its factorization.

999002051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 999002051 is about 31606.9937039257. The cubic root of 999002051 is about 999.6672396161.

The spelling of 999002051 in words is "nine hundred ninety-nine million, two thousand, fifty-one".