131539245 has 8 divisors (see below), whose sum is σ = 210462816. Its totient is φ = 70154256.

The previous prime is 131539237. The next prime is 131539297. The reversal of 131539245 is 542935131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131539245 - 2³ = 131539237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4384627 + ... + 4384656.

It is an arithmetic number, because the mean of its divisors is an integer number (26307852).

Almost surely, 2^131539245 is an apocalyptic number.

131539245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131539245 is a deficient number, since it is larger than the sum of its proper divisors (78923571).

131539245 is an equidigital number, since it uses as much as digits as its factorization.

131539245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769291.

The product of its digits is 16200, while the sum is 33.

The square root of 131539245 is about 11469.0559768448. The cubic root of 131539245 is about 508.5712220491.

It can be divided in two parts, 1315392 and 45, that multiplied together give a triangular number (59192640 = T₁₀₈₈₀).

The spelling of 131539245 in words is "one hundred thirty-one million, five hundred thirty-nine thousand, two hundred forty-five".