131341387 has 2 divisors, whose sum is σ = 131341388. Its totient is φ = 131341386.

The previous prime is 131341351. The next prime is 131341391. The reversal of 131341387 is 783143131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131341387 - 2¹¹ = 131339339 is a prime.

It is not a weakly prime, because it can be changed into another prime (131341187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65670693 + 65670694.

It is an arithmetic number, because the mean of its divisors is an integer number (65670694).

Almost surely, 2^131341387 is an apocalyptic number.

131341387 is a deficient number, since it is larger than the sum of its proper divisors (1).

131341387 is an equidigital number, since it uses as much as digits as its factorization.

131341387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 131341387 is about 11460.4269990258. The cubic root of 131341387 is about 508.3161007745.

The spelling of 131341387 in words is "one hundred thirty-one million, three hundred forty-one thousand, three hundred eighty-seven".