2151588831 has 16 divisors (see below), whose sum is σ = 3318115584. Its totient is φ = 1214665344.

The previous prime is 2151588781. The next prime is 2151588841. The reversal of 2151588831 is 1388851512.

It is not a de Polignac number, because 2151588831 - 2⁹ = 2151588319 is a prime.

It is a super-2 number, since 2×2151588831² = 9258668995367893122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151588841) 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 15 ways as a sum of consecutive naturals, for example, 615466 + ... + 618951.

It is an arithmetic number, because the mean of its divisors is an integer number (207382224).

Almost surely, 2^2151588831 is an apocalyptic number.

2151588831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2151588831 is a deficient number, since it is larger than the sum of its proper divisors (1166526753).

2151588831 is a wasteful number, since it uses less digits than its factorization.

2151588831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234510.

The product of its digits is 76800, while the sum is 42.

The square root of 2151588831 is about 46385.2221186878. Note that the first 3 decimals coincide. The cubic root of 2151588831 is about 1290.9807318781.

The spelling of 2151588831 in words is "two billion, one hundred fifty-one million, five hundred eighty-eight thousand, eight hundred thirty-one".