132129978 has 16 divisors (see below), whose sum is σ = 264434016. Its totient is φ = 44014320.

The previous prime is 132129973. The next prime is 132129989. The reversal of 132129978 is 879921231.

It is not an unprimeable number, because it can be changed into a prime (132129973) 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 7 ways as a sum of consecutive naturals, for example, 3948 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (16527126).

Almost surely, 2^132129978 is an apocalyptic number.

132129978 is an abundant number, since it is smaller than the sum of its proper divisors (132304038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132129978 is a wasteful number, since it uses less digits than its factorization.

132129978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509.

The product of its digits is 54432, while the sum is 42.

The square root of 132129978 is about 11494.7804676731. The cubic root of 132129978 is about 509.3314037638.

The spelling of 132129978 in words is "one hundred thirty-two million, one hundred twenty-nine thousand, nine hundred seventy-eight".