132781652257 has 2 divisors, whose sum is σ = 132781652258. Its totient is φ = 132781652256.

The previous prime is 132781652251. The next prime is 132781652273. The reversal of 132781652257 is 752256187231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82497626176 + 50284026081 = 287224^2 + 224241^2 .

It is a cyclic number.

It is not a de Polignac number, because 132781652257 - 2³ = 132781652249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132781652257.

It is not a weakly prime, because it can be changed into another prime (132781652251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66390826128 + 66390826129.

It is an arithmetic number, because the mean of its divisors is an integer number (66390826129).

Almost surely, 2^132781652257 is an apocalyptic number.

It is an amenable number.

132781652257 is a deficient number, since it is larger than the sum of its proper divisors (1).

132781652257 is an equidigital number, since it uses as much as digits as its factorization.

132781652257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The spelling of 132781652257 in words is "one hundred thirty-two billion, seven hundred eighty-one million, six hundred fifty-two thousand, two hundred fifty-seven".