994578123 has 64 divisors (see below), whose sum is σ = 1783111680. Its totient is φ = 477446400.

The previous prime is 994578119. The next prime is 994578133. The reversal of 994578123 is 321875499.

994578123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 994578123 - 2² = 994578119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994578133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 177186 + ... + 182712.

It is an arithmetic number, because the mean of its divisors is an integer number (27861120).

Almost surely, 2^994578123 is an apocalyptic number.

994578123 is a deficient number, since it is larger than the sum of its proper divisors (788533557).

994578123 is a wasteful number, since it uses less digits than its factorization.

994578123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608.

The product of its digits is 544320, while the sum is 48.

The square root of 994578123 is about 31536.9326821744. The cubic root of 994578123 is about 998.1894314868.

The spelling of 994578123 in words is "nine hundred ninety-four million, five hundred seventy-eight thousand, one hundred twenty-three".