131375577 has 8 divisors (see below), whose sum is σ = 176505120. Its totient is φ = 86914880.

The previous prime is 131375561. The next prime is 131375581. The reversal of 131375577 is 775573131.

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 131375577 - 2⁴ = 131375561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131375537) 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, 166752 + ... + 167537.

It is an arithmetic number, because the mean of its divisors is an integer number (22063140).

Almost surely, 2^131375577 is an apocalyptic number.

It is an amenable number.

131375577 is a deficient number, since it is larger than the sum of its proper divisors (45129543).

131375577 is a wasteful number, since it uses less digits than its factorization.

131375577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334423.

The product of its digits is 77175, while the sum is 39.

The square root of 131375577 is about 11461.9185566815. The cubic root of 131375577 is about 508.3602042113.

The spelling of 131375577 in words is "one hundred thirty-one million, three hundred seventy-five thousand, five hundred seventy-seven".