131314531 has 8 divisors (see below), whose sum is σ = 132686928. Its totient is φ = 129948000.

The previous prime is 131314507. The next prime is 131314537. The reversal of 131314531 is 135413131.

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

It is a cyclic number.

It is not a de Polignac number, because 131314531 - 2¹¹ = 131312483 is a prime.

It is a super-2 number, since 2×131314531² = 34487012103499922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131314537) 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 7 ways as a sum of consecutive naturals, for example, 53961 + ... + 56341.

It is an arithmetic number, because the mean of its divisors is an integer number (16585866).

Almost surely, 2^131314531 is an apocalyptic number.

131314531 is a deficient number, since it is larger than the sum of its proper divisors (1372397).

131314531 is a wasteful number, since it uses less digits than its factorization.

131314531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its digits is 540, while the sum is 22.

The square root of 131314531 is about 11459.2552550329. The cubic root of 131314531 is about 508.2814524734.

Adding to 131314531 its reverse (135413131), we get a palindrome (266727662).

It can be divided in two parts, 131 and 314531, that multiplied together give a square (41203561 = 6419²).

The spelling of 131314531 in words is "one hundred thirty-one million, three hundred fourteen thousand, five hundred thirty-one".