131323965 has 8 divisors (see below), whose sum is σ = 210118368. Its totient is φ = 70039440.

The previous prime is 131323961. The next prime is 131323979. The reversal of 131323965 is 569323131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131323965 - 2² = 131323961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131323961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4377451 + ... + 4377480.

It is an arithmetic number, because the mean of its divisors is an integer number (26264796).

Almost surely, 2^131323965 is an apocalyptic number.

131323965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131323965 is a deficient number, since it is larger than the sum of its proper divisors (78794403).

131323965 is an equidigital number, since it uses as much as digits as its factorization.

131323965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754939.

The product of its digits is 14580, while the sum is 33.

The square root of 131323965 is about 11459.6668799752. Note that the first 3 decimals coincide. The cubic root of 131323965 is about 508.2936242982.

The spelling of 131323965 in words is "one hundred thirty-one million, three hundred twenty-three thousand, nine hundred sixty-five".