132840729 has 20 divisors (see below), whose sum is σ = 226790784. Its totient is φ = 75908664.

The previous prime is 132840713. The next prime is 132840739. The reversal of 132840729 is 927048231.

It is not a de Polignac number, because 132840729 - 2⁴ = 132840713 is a prime.

It is a super-4 number, since 4×132840729⁴ (a number of 34 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 132840693 and 132840702.

It is not an unprimeable number, because it can be changed into a prime (132840739) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 116577 + ... + 117710.

Almost surely, 2^132840729 is an apocalyptic number.

It is an amenable number.

132840729 is a deficient number, since it is larger than the sum of its proper divisors (93950055).

132840729 is an equidigital number, since it uses as much as digits as its factorization.

132840729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234306 (or 234297 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 132840729 is about 11525.6552525225. The cubic root of 132840729 is about 510.2430329568.

The spelling of 132840729 in words is "one hundred thirty-two million, eight hundred forty thousand, seven hundred twenty-nine".