2153193831 has 6 divisors (see below), whose sum is σ = 3110168880. Its totient is φ = 1435462548.

The previous prime is 2153193793. The next prime is 2153193841. The reversal of 2153193831 is 1383913512.

2153193831 is a `hidden beast` number, since 2 + 1 + 531 + 93 + 8 + 31 = 666.

It is not a de Polignac number, because 2153193831 - 2⁶ = 2153193767 is a prime.

It is a super-2 number, since 2×2153193831² = 9272487347712913122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153193841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119621871 + ... + 119621888.

It is an arithmetic number, because the mean of its divisors is an integer number (518361480).

Almost surely, 2^2153193831 is an apocalyptic number.

2153193831 is a deficient number, since it is larger than the sum of its proper divisors (956975049).

2153193831 is a wasteful number, since it uses less digits than its factorization.

2153193831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239243765 (or 239243762 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 2153193831 is about 46402.5196621908. The cubic root of 2153193831 is about 1291.3016589131.

The spelling of 2153193831 in words is "two billion, one hundred fifty-three million, one hundred ninety-three thousand, eight hundred thirty-one".