132409987 has 2 divisors, whose sum is σ = 132409988. Its totient is φ = 132409986.

The previous prime is 132409967. The next prime is 132410071. The reversal of 132409987 is 789904231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132409987 - 2⁷ = 132409859 is a prime.

It is not a weakly prime, because it can be changed into another prime (132409967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66204993 + 66204994.

It is an arithmetic number, because the mean of its divisors is an integer number (66204994).

Almost surely, 2^132409987 is an apocalyptic number.

132409987 is a deficient number, since it is larger than the sum of its proper divisors (1).

132409987 is an equidigital number, since it uses as much as digits as its factorization.

132409987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 132409987 is about 11506.9538540832. The cubic root of 132409987 is about 509.6909405195.

The spelling of 132409987 in words is "one hundred thirty-two million, four hundred nine thousand, nine hundred eighty-seven".