131083399 has 4 divisors (see below), whose sum is σ = 132879136. Its totient is φ = 129287664.

The previous prime is 131083397. The next prime is 131083411. The reversal of 131083399 is 993380131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131083399 - 2¹ = 131083397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131083397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897759 + ... + 897904.

It is an arithmetic number, because the mean of its divisors is an integer number (33219784).

Almost surely, 2^131083399 is an apocalyptic number.

131083399 is a deficient number, since it is larger than the sum of its proper divisors (1795737).

131083399 is an equidigital number, since it uses as much as digits as its factorization.

131083399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795736.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 131083399 is about 11449.1658648130. The cubic root of 131083399 is about 507.9830617764.

The spelling of 131083399 in words is "one hundred thirty-one million, eighty-three thousand, three hundred ninety-nine".