131233799 has 4 divisors (see below), whose sum is σ = 132267264. Its totient is φ = 130200336.

The previous prime is 131233789. The next prime is 131233813. The reversal of 131233799 is 997332131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997332131 = 89 ⋅11205979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131233799 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 (131233789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516542 + ... + 516795.

It is an arithmetic number, because the mean of its divisors is an integer number (33066816).

Almost surely, 2^131233799 is an apocalyptic number.

131233799 is a deficient number, since it is larger than the sum of its proper divisors (1033465).

131233799 is a wasteful number, since it uses less digits than its factorization.

131233799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033464.

The product of its digits is 30618, while the sum is 38.

The square root of 131233799 is about 11455.7321459608. The cubic root of 131233799 is about 508.1772675313.

The spelling of 131233799 in words is "one hundred thirty-one million, two hundred thirty-three thousand, seven hundred ninety-nine".