131677699 has 4 divisors (see below), whose sum is σ = 139423464. Its totient is φ = 123931936.

The previous prime is 131677697. The next prime is 131677717. The reversal of 131677699 is 996776131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996776131 = 13 ⋅76675087.

It is a cyclic number.

It is not a de Polignac number, because 131677699 - 2¹ = 131677697 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131677697) 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, 3872857 + ... + 3872890.

It is an arithmetic number, because the mean of its divisors is an integer number (34855866).

Almost surely, 2^131677699 is an apocalyptic number.

131677699 is a deficient number, since it is larger than the sum of its proper divisors (7745765).

131677699 is an equidigital number, since it uses as much as digits as its factorization.

131677699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745764.

The product of its digits is 428652, while the sum is 49.

The square root of 131677699 is about 11475.0903700145. The cubic root of 131677699 is about 508.7495947452.

The spelling of 131677699 in words is "one hundred thirty-one million, six hundred seventy-seven thousand, six hundred ninety-nine".