131397073 has 8 divisors (see below), whose sum is σ = 134628480. Its totient is φ = 128204160.

The previous prime is 131397059. The next prime is 131397107. The reversal of 131397073 is 370793131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131397073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131397043) 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, 2653 + ... + 16426.

It is an arithmetic number, because the mean of its divisors is an integer number (16828560).

Almost surely, 2^131397073 is an apocalyptic number.

It is an amenable number.

131397073 is a deficient number, since it is larger than the sum of its proper divisors (3231407).

131397073 is an equidigital number, since it uses as much as digits as its factorization.

131397073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19247.

The product of its (nonzero) digits is 11907, while the sum is 34.

The square root of 131397073 is about 11462.8562321962. The cubic root of 131397073 is about 508.3879290879.

The spelling of 131397073 in words is "one hundred thirty-one million, three hundred ninety-seven thousand, seventy-three".