131890511 has 2 divisors, whose sum is σ = 131890512. Its totient is φ = 131890510.

The previous prime is 131890469. The next prime is 131890531. The reversal of 131890511 is 115098131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131890511 - 2¹⁰ = 131889487 is a prime.

It is a super-2 number, since 2×131890511² = 34790213783682242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131890531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65945255 + 65945256.

It is an arithmetic number, because the mean of its divisors is an integer number (65945256).

Almost surely, 2^131890511 is an apocalyptic number.

131890511 is a deficient number, since it is larger than the sum of its proper divisors (1).

131890511 is an equidigital number, since it uses as much as digits as its factorization.

131890511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 29.

The square root of 131890511 is about 11484.3594074724. The cubic root of 131890511 is about 509.0235205145.

The spelling of 131890511 in words is "one hundred thirty-one million, eight hundred ninety thousand, five hundred eleven".