131283251 has 4 divisors (see below), whose sum is σ = 143218104. Its totient is φ = 119348400.

The previous prime is 131283247. The next prime is 131283253. The reversal of 131283251 is 152382131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131283251 - 2² = 131283247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131283251.

It is not an unprimeable number, because it can be changed into a prime (131283253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5967410 + ... + 5967431.

It is an arithmetic number, because the mean of its divisors is an integer number (35804526).

Almost surely, 2^131283251 is an apocalyptic number.

131283251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131283251 is the 6125-th centered heptagonal number.

131283251 is a deficient number, since it is larger than the sum of its proper divisors (11934853).

131283251 is a wasteful number, since it uses less digits than its factorization.

131283251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11934852.

The product of its digits is 1440, while the sum is 26.

The square root of 131283251 is about 11457.8903381033. The cubic root of 131283251 is about 508.2410905873.

It can be divided in two parts, 131 and 283251, that added together give a palindrome (283382).

The spelling of 131283251 in words is "one hundred thirty-one million, two hundred eighty-three thousand, two hundred fifty-one".