132400991 has 2 divisors, whose sum is σ = 132400992. Its totient is φ = 132400990.

The previous prime is 132400963. The next prime is 132401029. The reversal of 132400991 is 199004231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132400991 - 2²⁶ = 65292127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132400091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66200495 + 66200496.

It is an arithmetic number, because the mean of its divisors is an integer number (66200496).

Almost surely, 2^132400991 is an apocalyptic number.

132400991 is a deficient number, since it is larger than the sum of its proper divisors (1).

132400991 is an equidigital number, since it uses as much as digits as its factorization.

132400991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 132400991 is about 11506.5629533758. The cubic root of 132400991 is about 509.6793973732.

The spelling of 132400991 in words is "one hundred thirty-two million, four hundred thousand, nine hundred ninety-one".