129142524 has 24 divisors (see below), whose sum is σ = 344380288. Its totient is φ = 36897840.

The previous prime is 129142513. The next prime is 129142547. The reversal of 129142524 is 425241921.

It is a junction number, because it is equal to n+sod(n) for n = 129142491 and 129142500.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 768622 + ... + 768789.

Almost surely, 2^129142524 is an apocalyptic number.

129142524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129142524 is an abundant number, since it is smaller than the sum of its proper divisors (215237764).

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

129142524 is a wasteful number, since it uses less digits than its factorization.

129142524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537425 (or 1537423 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 129142524 is about 11364.0892287944. The cubic root of 129142524 is about 505.4634493360.

The spelling of 129142524 in words is "one hundred twenty-nine million, one hundred forty-two thousand, five hundred twenty-four".