131675579 has 4 divisors (see below), whose sum is σ = 150486384. Its totient is φ = 112864776.

The previous prime is 131675549. The next prime is 131675581. The reversal of 131675579 is 975576131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131675579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131675519) 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, 9405392 + ... + 9405405.

It is an arithmetic number, because the mean of its divisors is an integer number (37621596).

Almost surely, 2^131675579 is an apocalyptic number.

131675579 is a deficient number, since it is larger than the sum of its proper divisors (18810805).

131675579 is an equidigital number, since it uses as much as digits as its factorization.

131675579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18810804.

The product of its digits is 198450, while the sum is 44.

The square root of 131675579 is about 11474.9979956425. The cubic root of 131675579 is about 508.7468644552.

The spelling of 131675579 in words is "one hundred thirty-one million, six hundred seventy-five thousand, five hundred seventy-nine".