131565055 has 8 divisors (see below), whose sum is σ = 158022144. Its totient is φ = 105156000.

The previous prime is 131565047. The next prime is 131565067. The reversal of 131565055 is 550565131.

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

It is not a de Polignac number, because 131565055 - 2³ = 131565047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 17185.

It is an arithmetic number, because the mean of its divisors is an integer number (19752768).

Almost surely, 2^131565055 is an apocalyptic number.

131565055 is a deficient number, since it is larger than the sum of its proper divisors (26457089).

131565055 is a wasteful number, since it uses less digits than its factorization.

131565055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24017.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 131565055 is about 11470.1811232430. The cubic root of 131565055 is about 508.6044830093.

The spelling of 131565055 in words is "one hundred thirty-one million, five hundred sixty-five thousand, fifty-five".