131774723 has 4 divisors (see below), whose sum is σ = 135336240. Its totient is φ = 128213208.

The previous prime is 131774719. The next prime is 131774759. The reversal of 131774723 is 327477131.

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 131774723 - 2² = 131774719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131773723) 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, 1780703 + ... + 1780776.

It is an arithmetic number, because the mean of its divisors is an integer number (33834060).

Almost surely, 2^131774723 is an apocalyptic number.

131774723 is a deficient number, since it is larger than the sum of its proper divisors (3561517).

131774723 is an equidigital number, since it uses as much as digits as its factorization.

131774723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561516.

The product of its digits is 24696, while the sum is 35.

The square root of 131774723 is about 11479.3171835262. The cubic root of 131774723 is about 508.8745179541.

The spelling of 131774723 in words is "one hundred thirty-one million, seven hundred seventy-four thousand, seven hundred twenty-three".