131497073 has 4 divisors (see below), whose sum is σ = 131536548. Its totient is φ = 131457600.

The previous prime is 131497061. The next prime is 131497087. The reversal of 131497073 is 370794131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15547249 + 115949824 = 3943^2 + 10768^2 .

It is a cyclic number.

It is not a de Polignac number, because 131497073 - 2¹⁰ = 131496049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131497573) 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 3 ways as a sum of consecutive naturals, for example, 14228 + ... + 21573.

It is an arithmetic number, because the mean of its divisors is an integer number (32884137).

Almost surely, 2^131497073 is an apocalyptic number.

It is an amenable number.

131497073 is a deficient number, since it is larger than the sum of its proper divisors (39475).

131497073 is an equidigital number, since it uses as much as digits as its factorization.

131497073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39474.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 131497073 is about 11467.2173172047. The cubic root of 131497073 is about 508.5168662608.

The spelling of 131497073 in words is "one hundred thirty-one million, four hundred ninety-seven thousand, seventy-three".