131933479 has 2 divisors, whose sum is σ = 131933480. Its totient is φ = 131933478.

The previous prime is 131933443. The next prime is 131933509. The reversal of 131933479 is 974339131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131933479 - 2¹¹ = 131931431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131933419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65966739 + 65966740.

It is an arithmetic number, because the mean of its divisors is an integer number (65966740).

Almost surely, 2^131933479 is an apocalyptic number.

131933479 is a deficient number, since it is larger than the sum of its proper divisors (1).

131933479 is an equidigital number, since it uses as much as digits as its factorization.

131933479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 131933479 is about 11486.2299733202. The cubic root of 131933479 is about 509.0787919861.

The spelling of 131933479 in words is "one hundred thirty-one million, nine hundred thirty-three thousand, four hundred seventy-nine".