2478129 has 8 divisors (see below), whose sum is σ = 3353760. Its totient is φ = 1627296.

The previous prime is 2478101. The next prime is 2478173. The reversal of 2478129 is 9218742.

It is a happy number.

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

It is not a de Polignac number, because 2478129 - 2⁵ = 2478097 is a prime.

It is a super-2 number, since 2×2478129² = 12282246681282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2478129.

It is not an unprimeable number, because it can be changed into a prime (2478029) 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, 5964 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (419220).

2^2478129 is an apocalyptic number.

It is an amenable number.

2478129 is a deficient number, since it is larger than the sum of its proper divisors (875631).

2478129 is a wasteful number, since it uses less digits than its factorization.

2478129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12399.

The product of its digits is 8064, while the sum is 33.

The square root of 2478129 is about 1574.2074196242. The cubic root of 2478129 is about 135.3239408550.

The spelling of 2478129 in words is "two million, four hundred seventy-eight thousand, one hundred twenty-nine".