2131322158 has 16 divisors (see below), whose sum is σ = 3656373984. Its totient is φ = 912754080.

The previous prime is 2131322069. The next prime is 2131322159. The reversal of 2131322158 is 8512231312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131322159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35785 + ... + 74452.

It is an arithmetic number, because the mean of its divisors is an integer number (228523374).

Almost surely, 2^2131322158 is an apocalyptic number.

2131322158 is a deficient number, since it is larger than the sum of its proper divisors (1525051826).

2131322158 is a wasteful number, since it uses less digits than its factorization.

2131322158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111627.

The product of its digits is 2880, while the sum is 28.

The square root of 2131322158 is about 46166.2447898895. The cubic root of 2131322158 is about 1286.9145171934.

The spelling of 2131322158 in words is "two billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred fifty-eight".