129414132 has 48 divisors (see below), whose sum is σ = 355259520. Its totient is φ = 40599936.

The previous prime is 129414121. The next prime is 129414139. The reversal of 129414132 is 231414921.

It is a happy number.

It is a super-2 number, since 2×129414132² = 33496035122626848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 129414096 and 129414105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129414139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33408 + ... + 37079.

It is an arithmetic number, because the mean of its divisors is an integer number (7401240).

Almost surely, 2^129414132 is an apocalyptic number.

129414132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129414132 is an abundant number, since it is smaller than the sum of its proper divisors (225845388).

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

129414132 is a wasteful number, since it uses less digits than its factorization.

129414132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70517 (or 70509 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 129414132 is about 11376.0332277996. The cubic root of 129414132 is about 505.8175588326.

The spelling of 129414132 in words is "one hundred twenty-nine million, four hundred fourteen thousand, one hundred thirty-two".