129964027 has 8 divisors (see below), whose sum is σ = 131297600. Its totient is φ = 128636424.

The previous prime is 129963991. The next prime is 129964033. The reversal of 129964027 is 720469921.

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 129964027 - 2¹⁵ = 129931259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129964097) 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, 51448 + ... + 53914.

It is an arithmetic number, because the mean of its divisors is an integer number (16412200).

Almost surely, 2^129964027 is an apocalyptic number.

129964027 is a deficient number, since it is larger than the sum of its proper divisors (1333573).

129964027 is a wasteful number, since it uses less digits than its factorization.

129964027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 129964027 is about 11400.1766214388. The cubic root of 129964027 is about 506.5329714671.

The spelling of 129964027 in words is "one hundred twenty-nine million, nine hundred sixty-four thousand, twenty-seven".