132649991 has 2 divisors, whose sum is σ = 132649992. Its totient is φ = 132649990.

The previous prime is 132649903. The next prime is 132650053. The reversal of 132649991 is 199946231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 132649991 - 2²² = 128455687 is a prime.

It is a super-2 number, since 2×132649991² = 35192040224600162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132649591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66324995 + 66324996.

It is an arithmetic number, because the mean of its divisors is an integer number (66324996).

Almost surely, 2^132649991 is an apocalyptic number.

132649991 is a deficient number, since it is larger than the sum of its proper divisors (1).

132649991 is an equidigital number, since it uses as much as digits as its factorization.

132649991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The square root of 132649991 is about 11517.3777831588. The cubic root of 132649991 is about 509.9987069043.

The spelling of 132649991 in words is "one hundred thirty-two million, six hundred forty-nine thousand, nine hundred ninety-one".