129974401 has 8 divisors (see below), whose sum is σ = 138672864. Its totient is φ = 121392960.

The previous prime is 129974399. The next prime is 129974417. The reversal of 129974401 is 104479921.

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

It is a cyclic number.

It is not a de Polignac number, because 129974401 - 2¹ = 129974399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129974441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26955 + ... + 31408.

It is an arithmetic number, because the mean of its divisors is an integer number (17334108).

Almost surely, 2^129974401 is an apocalyptic number.

It is an amenable number.

129974401 is a deficient number, since it is larger than the sum of its proper divisors (8698463).

129974401 is a wasteful number, since it uses less digits than its factorization.

129974401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58511.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 129974401 is about 11400.6316053103. The cubic root of 129974401 is about 506.5464486150.

The spelling of 129974401 in words is "one hundred twenty-nine million, nine hundred seventy-four thousand, four hundred one".