1167998331 has 16 divisors (see below), whose sum is σ = 1578470400. Its totient is φ = 768114048.

The previous prime is 1167998323. The next prime is 1167998333. The reversal of 1167998331 is 1338997611.

It is not a de Polignac number, because 1167998331 - 2³ = 1167998323 is a prime.

It is a super-2 number, since 2×1167998331² = 2728440202437571122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1167998333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482035 + ... + 484451.

It is an arithmetic number, because the mean of its divisors is an integer number (98654400).

Almost surely, 2^1167998331 is an apocalyptic number.

1167998331 is a deficient number, since it is larger than the sum of its proper divisors (410472069).

1167998331 is a wasteful number, since it uses less digits than its factorization.

1167998331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538.

The product of its digits is 244944, while the sum is 48.

The square root of 1167998331 is about 34175.9905635521. The cubic root of 1167998331 is about 1053.1269840160.

The spelling of 1167998331 in words is "one billion, one hundred sixty-seven million, nine hundred ninety-eight thousand, three hundred thirty-one".