132439949929 has 21 divisors (see below), whose sum is σ = 154658854231. Its totient is φ = 113412963720.

The previous prime is 132439949927. The next prime is 132439949989. The reversal of 132439949929 is 929949934231.

It is a happy number.

The square root of 132439949929 is 363923.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 87215674329 + 45224275600 = 295323^2 + 212660^2 .

It is not a de Polignac number, because 132439949929 - 2¹ = 132439949927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132439949927) 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 in 20 ways as a sum of consecutive naturals, for example, 124825059 + ... + 124826119.

Almost surely, 2^132439949929 is an apocalyptic number.

132439949929 is the 363923-rd square number.

132439949929 is the 181962-nd centered octagonal number.

It is an amenable number.

132439949929 is a deficient number, since it is larger than the sum of its proper divisors (22218904302).

132439949929 is an frugal number, since it uses more digits than its factorization.

132439949929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 1068 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 64.

Multiplying 132439949929 by its sum of digits (64), we get a square (8476156795456 = 2911384²).

The spelling of 132439949929 in words is "one hundred thirty-two billion, four hundred thirty-nine million, nine hundred forty-nine thousand, nine hundred twenty-nine".