2131935722 has 16 divisors (see below), whose sum is σ = 3660554112. Its totient is φ = 912234960.

The previous prime is 2131935721. The next prime is 2131935733. The reversal of 2131935722 is 2275391312.

It is a super-2 number, since 2×2131935722² = 9090299845479322568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2131935721) 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, 111833 + ... + 129500.

It is an arithmetic number, because the mean of its divisors is an integer number (228784632).

Almost surely, 2^2131935722 is an apocalyptic number.

2131935722 is a deficient number, since it is larger than the sum of its proper divisors (1528618390).

2131935722 is a wasteful number, since it uses less digits than its factorization.

2131935722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241973.

The product of its digits is 22680, while the sum is 35.

The square root of 2131935722 is about 46172.8894699043. The cubic root of 2131935722 is about 1287.0379974562.

The spelling of 2131935722 in words is "two billion, one hundred thirty-one million, nine hundred thirty-five thousand, seven hundred twenty-two".