131140531 has 2 divisors, whose sum is σ = 131140532. Its totient is φ = 131140530.

The previous prime is 131140501. The next prime is 131140547. The reversal of 131140531 is 135041131.

It is a strong prime.

It is an emirp because it is prime and its reverse (135041131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131140531 - 2¹⁵ = 131107763 is a prime.

It is a super-2 number, since 2×131140531² = 34395677741923922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131140499 and 131140508.

It is not a weakly prime, because it can be changed into another prime (131140501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65570265 + 65570266.

It is an arithmetic number, because the mean of its divisors is an integer number (65570266).

Almost surely, 2^131140531 is an apocalyptic number.

131140531 is a deficient number, since it is larger than the sum of its proper divisors (1).

131140531 is an equidigital number, since it uses as much as digits as its factorization.

131140531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 131140531 is about 11451.6606219360. The cubic root of 131140531 is about 508.0568516261.

Adding to 131140531 its reverse (135041131), we get a palindrome (266181662).

The spelling of 131140531 in words is "one hundred thirty-one million, one hundred forty thousand, five hundred thirty-one".