131165123 has 8 divisors (see below), whose sum is σ = 135883776. Its totient is φ = 126477000.

The previous prime is 131165119. The next prime is 131165129. The reversal of 131165123 is 321561131.

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 131165123 - 2² = 131165119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131165129) 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, 1298 + ... + 16248.

It is an arithmetic number, because the mean of its divisors is an integer number (16985472).

Almost surely, 2^131165123 is an apocalyptic number.

131165123 is a deficient number, since it is larger than the sum of its proper divisors (4718653).

131165123 is a wasteful number, since it uses less digits than its factorization.

131165123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265.

The product of its digits is 540, while the sum is 23.

The square root of 131165123 is about 11452.7343023402. The cubic root of 131165123 is about 508.0886072628.

The spelling of 131165123 in words is "one hundred thirty-one million, one hundred sixty-five thousand, one hundred twenty-three".