131933459 has 4 divisors (see below), whose sum is σ = 150781104. Its totient is φ = 113085816.

The previous prime is 131933443. The next prime is 131933479. The reversal of 131933459 is 954339131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954339131 = 2269 ⋅420599.

It is a cyclic number.

It is not a de Polignac number, because 131933459 - 2⁴ = 131933443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131933419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9423812 + ... + 9423825.

It is an arithmetic number, because the mean of its divisors is an integer number (37695276).

Almost surely, 2^131933459 is an apocalyptic number.

131933459 is a deficient number, since it is larger than the sum of its proper divisors (18847645).

131933459 is an equidigital number, since it uses as much as digits as its factorization.

131933459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18847644.

The product of its digits is 43740, while the sum is 38.

The square root of 131933459 is about 11486.2291027125. The cubic root of 131933459 is about 509.0787662620.

The spelling of 131933459 in words is "one hundred thirty-one million, nine hundred thirty-three thousand, four hundred fifty-nine".