131545459 has 2 divisors, whose sum is σ = 131545460. Its totient is φ = 131545458.

The previous prime is 131545409. The next prime is 131545481. The reversal of 131545459 is 954545131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131545459 - 2⁷ = 131545331 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131545409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65772729 + 65772730.

It is an arithmetic number, because the mean of its divisors is an integer number (65772730).

Almost surely, 2^131545459 is an apocalyptic number.

131545459 is a deficient number, since it is larger than the sum of its proper divisors (1).

131545459 is an equidigital number, since it uses as much as digits as its factorization.

131545459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 131545459 is about 11469.3268764998. The cubic root of 131545459 is about 508.5792303354.

The spelling of 131545459 in words is "one hundred thirty-one million, five hundred forty-five thousand, four hundred fifty-nine".