132649139 has 4 divisors (see below), whose sum is σ = 151599024. Its totient is φ = 113699256.

The previous prime is 132649133. The next prime is 132649151. The reversal of 132649139 is 931946231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931946231 = 11551 ⋅80681.

It is a cyclic number.

It is not a de Polignac number, because 132649139 - 2⁸ = 132648883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132649133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9474932 + ... + 9474945.

It is an arithmetic number, because the mean of its divisors is an integer number (37899756).

Almost surely, 2^132649139 is an apocalyptic number.

132649139 is a deficient number, since it is larger than the sum of its proper divisors (18949885).

132649139 is an equidigital number, since it uses as much as digits as its factorization.

132649139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18949884.

The product of its digits is 34992, while the sum is 38.

The square root of 132649139 is about 11517.3407955135. The cubic root of 132649139 is about 509.9976150087.

The spelling of 132649139 in words is "one hundred thirty-two million, six hundred forty-nine thousand, one hundred thirty-nine".