131673599 has 8 divisors (see below), whose sum is σ = 133300128. Its totient is φ = 130053600.

The previous prime is 131673583. The next prime is 131673613. The reversal of 131673599 is 995376131.

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 131673599 - 2⁴ = 131673583 is a prime.

It is a super-2 number, since 2×131673599² = 34675873347225602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131673539) 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, 47849 + ... + 50525.

It is an arithmetic number, because the mean of its divisors is an integer number (16662516).

Almost surely, 2^131673599 is an apocalyptic number.

131673599 is a deficient number, since it is larger than the sum of its proper divisors (1626529).

131673599 is a wasteful number, since it uses less digits than its factorization.

131673599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265.

The product of its digits is 153090, while the sum is 44.

The square root of 131673599 is about 11474.9117207933. The cubic root of 131673599 is about 508.7443144408.

The spelling of 131673599 in words is "one hundred thirty-one million, six hundred seventy-three thousand, five hundred ninety-nine".