131253861 has 8 divisors (see below), whose sum is σ = 175128640. Its totient is φ = 87440832.

The previous prime is 131253853. The next prime is 131253887. The reversal of 131253861 is 168352131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131253861 - 2³ = 131253853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131253841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10225 + ... + 19158.

It is an arithmetic number, because the mean of its divisors is an integer number (21891080).

Almost surely, 2^131253861 is an apocalyptic number.

It is an amenable number.

131253861 is a deficient number, since it is larger than the sum of its proper divisors (43874779).

131253861 is a wasteful number, since it uses less digits than its factorization.

131253861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30875.

The product of its digits is 4320, while the sum is 30.

The square root of 131253861 is about 11456.6077440052. The cubic root of 131253861 is about 508.2031616047.

The spelling of 131253861 in words is "one hundred thirty-one million, two hundred fifty-three thousand, eight hundred sixty-one".