131153231 has 6 divisors (see below), whose sum is σ = 144160296. Its totient is φ = 119230100.

The previous prime is 131153221. The next prime is 131153261. The reversal of 131153231 is 132351131.

It is not a de Polignac number, because 131153231 - 2¹⁴ = 131136847 is a prime.

It is a super-2 number, since 2×131153231² = 34402340003478722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131153201) 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 5 ways as a sum of consecutive naturals, for example, 541835 + ... + 542076.

It is an arithmetic number, because the mean of its divisors is an integer number (24026716).

Almost surely, 2^131153231 is an apocalyptic number.

131153231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131153231 is a deficient number, since it is larger than the sum of its proper divisors (13007065).

131153231 is a wasteful number, since it uses less digits than its factorization.

131153231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083933 (or 1083922 counting only the distinct ones).

The product of its digits is 270, while the sum is 20.

The square root of 131153231 is about 11452.2151132434. The cubic root of 131153231 is about 508.0732516251.

The spelling of 131153231 in words is "one hundred thirty-one million, one hundred fifty-three thousand, two hundred thirty-one".