129527472 has 40 divisors (see below), whose sum is σ = 337072176. Its totient is φ = 42858496.

The previous prime is 129527423. The next prime is 129527473. The reversal of 129527472 is 274725921.

It is a self number, because there is not a number n which added to its sum of digits gives 129527472.

It is not an unprimeable number, because it can be changed into a prime (129527473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273 + ... + 16424.

Almost surely, 2^129527472 is an apocalyptic number.

129527472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129527472 is an abundant number, since it is smaller than the sum of its proper divisors (207544704).

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

129527472 is a wasteful number, since it uses less digits than its factorization.

129527472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19845 (or 19839 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 129527472 is about 11381.0136631145. The cubic root of 129527472 is about 505.9651795835.

The spelling of 129527472 in words is "one hundred twenty-nine million, five hundred twenty-seven thousand, four hundred seventy-two".