999340131 has 16 divisors (see below), whose sum is σ = 1408060800. Its totient is φ = 628697088.

The previous prime is 999340129. The next prime is 999340151. The reversal of 999340131 is 131043999.

999340131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 999340131 - 2¹ = 999340129 is a prime.

It is a super-2 number, since 2×999340131² = 1997361394854194322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999340131.

It is not an unprimeable number, because it can be changed into a prime (999340151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19461 + ... + 48758.

It is an arithmetic number, because the mean of its divisors is an integer number (88003800).

Almost surely, 2^999340131 is an apocalyptic number.

999340131 is a deficient number, since it is larger than the sum of its proper divisors (408720669).

999340131 is a wasteful number, since it uses less digits than its factorization.

999340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68498.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 999340131 is about 31612.3414349523. The cubic root of 999340131 is about 999.7799952681.

The spelling of 999340131 in words is "nine hundred ninety-nine million, three hundred forty thousand, one hundred thirty-one".