131754239 has 2 divisors, whose sum is σ = 131754240. Its totient is φ = 131754238.

The previous prime is 131754229. The next prime is 131754251. The reversal of 131754239 is 932457131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131754239 - 2⁸ = 131753983 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131754199 and 131754208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131754229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65877119 + 65877120.

It is an arithmetic number, because the mean of its divisors is an integer number (65877120).

Almost surely, 2^131754239 is an apocalyptic number.

131754239 is a deficient number, since it is larger than the sum of its proper divisors (1).

131754239 is an equidigital number, since it uses as much as digits as its factorization.

131754239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 131754239 is about 11478.4249355040. The cubic root of 131754239 is about 508.8481488965.

The spelling of 131754239 in words is "one hundred thirty-one million, seven hundred fifty-four thousand, two hundred thirty-nine".