990051003 has 12 divisors (see below), whose sum is σ = 1435393440. Its totient is φ = 657578736.

The previous prime is 990051001. The next prime is 990051017. The reversal of 990051003 is 300150099.

It is not a de Polignac number, because 990051003 - 2¹ = 990051001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990051001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202051 + ... + 206892.

It is an arithmetic number, because the mean of its divisors is an integer number (119616120).

Almost surely, 2^990051003 is an apocalyptic number.

990051003 is a deficient number, since it is larger than the sum of its proper divisors (445342437).

990051003 is a wasteful number, since it uses less digits than its factorization.

990051003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409218 (or 409215 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 990051003 is about 31465.0759255400. The cubic root of 990051003 is about 996.6726084117.

The spelling of 990051003 in words is "nine hundred ninety million, fifty-one thousand, three".