131299249 has 8 divisors (see below), whose sum is σ = 139331520. Its totient is φ = 123460656.

The previous prime is 131299243. The next prime is 131299283. The reversal of 131299249 is 942992131.

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

It is a cyclic number.

It is not a de Polignac number, because 131299249 - 2¹³ = 131291057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131299243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47022 + ... + 49735.

It is an arithmetic number, because the mean of its divisors is an integer number (17416440).

Almost surely, 2^131299249 is an apocalyptic number.

It is an amenable number.

131299249 is a deficient number, since it is larger than the sum of its proper divisors (8032271).

131299249 is an equidigital number, since it uses as much as digits as its factorization.

131299249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96839.

The product of its digits is 34992, while the sum is 40.

The square root of 131299249 is about 11458.5884383723. The cubic root of 131299249 is about 508.2617342736.

The spelling of 131299249 in words is "one hundred thirty-one million, two hundred ninety-nine thousand, two hundred forty-nine".