132040781 has 2 divisors, whose sum is σ = 132040782. Its totient is φ = 132040780.

The previous prime is 132040771. The next prime is 132040793. The reversal of 132040781 is 187040231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128618281 + 3422500 = 11341^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 132040781 - 2¹⁸ = 131778637 is a prime.

It is a super-2 number, since 2×132040781² = 34869535694179922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 132040781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132040771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66020390 + 66020391.

It is an arithmetic number, because the mean of its divisors is an integer number (66020391).

Almost surely, 2^132040781 is an apocalyptic number.

It is an amenable number.

132040781 is a deficient number, since it is larger than the sum of its proper divisors (1).

132040781 is an equidigital number, since it uses as much as digits as its factorization.

132040781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 132040781 is about 11490.8999212420. The cubic root of 132040781 is about 509.2167664933.

The spelling of 132040781 in words is "one hundred thirty-two million, forty thousand, seven hundred eighty-one".