131325252665 has 16 divisors (see below), whose sum is σ = 158323619088. Its totient is φ = 104572317696.

The previous prime is 131325252631. The next prime is 131325252673. The reversal of 131325252665 is 566252523131.

It can be written as a sum of positive squares in 8 ways, for example, as 4609187881 + 126716064784 = 67891^2 + 355972^2 .

It is a cyclic number.

It is not a de Polignac number, because 131325252665 - 2¹⁰ = 131325251641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005149 + ... + 1128261.

It is an arithmetic number, because the mean of its divisors is an integer number (9895226193).

Almost surely, 2^131325252665 is an apocalyptic number.

It is an amenable number.

131325252665 is a deficient number, since it is larger than the sum of its proper divisors (26998366423).

131325252665 is a wasteful number, since it uses less digits than its factorization.

131325252665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124108.

The product of its digits is 324000, while the sum is 41.

Adding to 131325252665 its reverse (566252523131), we get a palindrome (697577775796).

The spelling of 131325252665 in words is "one hundred thirty-one billion, three hundred twenty-five million, two hundred fifty-two thousand, six hundred sixty-five".