131451539 has 2 divisors, whose sum is σ = 131451540. Its totient is φ = 131451538.

The previous prime is 131451517. The next prime is 131451553. The reversal of 131451539 is 935154131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131451539 - 2⁸ = 131451283 is a prime.

It is not a weakly prime, because it can be changed into another prime (131451569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65725769 + 65725770.

It is an arithmetic number, because the mean of its divisors is an integer number (65725770).

Almost surely, 2^131451539 is an apocalyptic number.

131451539 is a deficient number, since it is larger than the sum of its proper divisors (1).

131451539 is an equidigital number, since it uses as much as digits as its factorization.

131451539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 32.

The square root of 131451539 is about 11465.2317464585. The cubic root of 131451539 is about 508.4581641174.

The spelling of 131451539 in words is "one hundred thirty-one million, four hundred fifty-one thousand, five hundred thirty-nine".