478121125 has 16 divisors (see below), whose sum is σ = 622642176. Its totient is φ = 365864400.

The previous prime is 478121123. The next prime is 478121129. The reversal of 478121125 is 521121874.

It is not a de Polignac number, because 478121125 - 2¹ = 478121123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80277 + ... + 86026.

It is an arithmetic number, because the mean of its divisors is an integer number (38915136).

Almost surely, 2^478121125 is an apocalyptic number.

It is an amenable number.

478121125 is a deficient number, since it is larger than the sum of its proper divisors (144521051).

478121125 is a wasteful number, since it uses less digits than its factorization.

478121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166341 (or 166331 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 478121125 is about 21865.9809978880. The cubic root of 478121125 is about 781.9505886236.

Adding to 478121125 its reverse (521121874), we get a palindrome (999242999).

The spelling of 478121125 in words is "four hundred seventy-eight million, one hundred twenty-one thousand, one hundred twenty-five".