132507737561 has 4 divisors (see below), whose sum is σ = 132650373300. Its totient is φ = 132365101824.

The previous prime is 132507737533. The next prime is 132507737581. The reversal of 132507737561 is 165737705231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20780664025 + 111727073536 = 144155^2 + 334256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132507737561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132507737581) 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, 71316476 + ... + 71318333.

It is an arithmetic number, because the mean of its divisors is an integer number (33162593325).

Almost surely, 2^132507737561 is an apocalyptic number.

It is an amenable number.

132507737561 is a deficient number, since it is larger than the sum of its proper divisors (142635739).

132507737561 is an equidigital number, since it uses as much as digits as its factorization.

132507737561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142635738.

The product of its (nonzero) digits is 926100, while the sum is 47.

The spelling of 132507737561 in words is "one hundred thirty-two billion, five hundred seven million, seven hundred thirty-seven thousand, five hundred sixty-one".