129472451 has 8 divisors (see below), whose sum is σ = 137977344. Its totient is φ = 121207240.

The previous prime is 129472433. The next prime is 129472457. The reversal of 129472451 is 154274921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129472451 - 2¹⁰ = 129471427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129472457) 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, 58805 + ... + 60966.

It is an arithmetic number, because the mean of its divisors is an integer number (17247168).

Almost surely, 2^129472451 is an apocalyptic number.

129472451 is a deficient number, since it is larger than the sum of its proper divisors (8504893).

129472451 is a wasteful number, since it uses less digits than its factorization.

129472451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119841.

The product of its digits is 20160, while the sum is 35.

The square root of 129472451 is about 11378.5961787911. The cubic root of 129472451 is about 505.8935277235.

The spelling of 129472451 in words is "one hundred twenty-nine million, four hundred seventy-two thousand, four hundred fifty-one".