132403681 has 2 divisors, whose sum is σ = 132403682. Its totient is φ = 132403680.

The previous prime is 132403673. The next prime is 132403721. The reversal of 132403681 is 186304231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104366656 + 28037025 = 10216^2 + 5295^2 .

It is a cyclic number.

It is not a de Polignac number, because 132403681 - 2³ = 132403673 is a prime.

It is a super-2 number, since 2×132403681² = 35061469484699522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132403651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66201840 + 66201841.

It is an arithmetic number, because the mean of its divisors is an integer number (66201841).

Almost surely, 2^132403681 is an apocalyptic number.

It is an amenable number.

132403681 is a deficient number, since it is larger than the sum of its proper divisors (1).

132403681 is an equidigital number, since it uses as much as digits as its factorization.

132403681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 132403681 is about 11506.6798425958. The cubic root of 132403681 is about 509.6828490802.

The spelling of 132403681 in words is "one hundred thirty-two million, four hundred three thousand, six hundred eighty-one".