129141427 has 6 divisors (see below), whose sum is σ = 132221012. Its totient is φ = 126065352.

The previous prime is 129141413. The next prime is 129141451. The reversal of 129141427 is 724141921.

It is a de Polignac number, because none of the positive numbers 2^k-129141427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129141407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73653 + ... + 75385.

Almost surely, 2^129141427 is an apocalyptic number.

129141427 is a deficient number, since it is larger than the sum of its proper divisors (3079585).

129141427 is an frugal number, since it uses more digits than its factorization.

129141427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509 (or 1776 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 129141427 is about 11364.0409626154. The cubic root of 129141427 is about 505.4620181137.

It can be divided in two parts, 12914 and 1427, that added together give a palindrome (14341).

The spelling of 129141427 in words is "one hundred twenty-nine million, one hundred forty-one thousand, four hundred twenty-seven".