131130487 has 2 divisors, whose sum is σ = 131130488. Its totient is φ = 131130486.

The previous prime is 131130481. The next prime is 131130491. The reversal of 131130487 is 784031131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131130487 - 2⁷ = 131130359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131130481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65565243 + 65565244.

It is an arithmetic number, because the mean of its divisors is an integer number (65565244).

Almost surely, 2^131130487 is an apocalyptic number.

131130487 is a deficient number, since it is larger than the sum of its proper divisors (1).

131130487 is an equidigital number, since it uses as much as digits as its factorization.

131130487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 131130487 is about 11451.2220745211. Note that the first 3 decimals coincide. The cubic root of 131130487 is about 508.0438806723.

It can be divided in two parts, 13 and 1130487, that multiplied together give a triangular number (14696331 = T₅₄₂₁).

The spelling of 131130487 in words is "one hundred thirty-one million, one hundred thirty thousand, four hundred eighty-seven".