131534863 has 2 divisors, whose sum is σ = 131534864. Its totient is φ = 131534862.

The previous prime is 131534857. The next prime is 131534867. The reversal of 131534863 is 368435131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131534863 - 2²⁵ = 97980431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131534867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65767431 + 65767432.

It is an arithmetic number, because the mean of its divisors is an integer number (65767432).

Almost surely, 2^131534863 is an apocalyptic number.

131534863 is a deficient number, since it is larger than the sum of its proper divisors (1).

131534863 is an equidigital number, since it uses as much as digits as its factorization.

131534863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 131534863 is about 11468.8649394785. The cubic root of 131534863 is about 508.5655745993.

Adding to 131534863 its reverse (368435131), we get a palindrome (499969994).

The spelling of 131534863 in words is "one hundred thirty-one million, five hundred thirty-four thousand, eight hundred sixty-three".