132120399 has 4 divisors (see below), whose sum is σ = 176160536. Its totient is φ = 88080264.

The previous prime is 132120397. The next prime is 132120427. The reversal of 132120399 is 993021231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 132120399 - 2¹ = 132120397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132120397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22020064 + ... + 22020069.

It is an arithmetic number, because the mean of its divisors is an integer number (44040134).

Almost surely, 2^132120399 is an apocalyptic number.

132120399 is a deficient number, since it is larger than the sum of its proper divisors (44040137).

132120399 is an equidigital number, since it uses as much as digits as its factorization.

132120399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44040136.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 132120399 is about 11494.3637927464. The cubic root of 132120399 is about 509.3190951681.

The spelling of 132120399 in words is "one hundred thirty-two million, one hundred twenty thousand, three hundred ninety-nine".