999961130 has 48 divisors (see below), whose sum is σ = 2142534240. Its totient is φ = 334863648.

The previous prime is 999961129. The next prime is 999961139. The reversal of 999961130 is 31169999.

999961130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (999961139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2660 + ... + 44799.

It is an arithmetic number, because the mean of its divisors is an integer number (44636130).

Almost surely, 2^999961130 is an apocalyptic number.

999961130 is an abundant number, since it is smaller than the sum of its proper divisors (1142573110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999961130 is a wasteful number, since it uses less digits than its factorization.

999961130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47523 (or 47516 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 999961130 is about 31622.1620070482. The cubic root of 999961130 is about 999.9870431655.

The spelling of 999961130 in words is "nine hundred ninety-nine million, nine hundred sixty-one thousand, one hundred thirty".