131301565 has 8 divisors (see below), whose sum is σ = 157648608. Its totient is φ = 104983440.

The previous prime is 131301551. The next prime is 131301587. The reversal of 131301565 is 565103131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131301565 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, 4494 + ... + 16816.

It is an arithmetic number, because the mean of its divisors is an integer number (19706076).

Almost surely, 2^131301565 is an apocalyptic number.

It is an amenable number.

131301565 is a deficient number, since it is larger than the sum of its proper divisors (26347043).

131301565 is a wasteful number, since it uses less digits than its factorization.

131301565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14459.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 131301565 is about 11458.6894974949. The cubic root of 131301565 is about 508.2647226817.

Adding to 131301565 its reverse (565103131), we get a palindrome (696404696).

The spelling of 131301565 in words is "one hundred thirty-one million, three hundred one thousand, five hundred sixty-five".