1478665125 has 160 divisors (see below), whose sum is σ = 3256940544. Its totient is φ = 653184000.

The previous prime is 1478665091. The next prime is 1478665127. The reversal of 1478665125 is 5215668741.

1478665125 is a `hidden beast` number, since 1 + 4 + 78 + 66 + 512 + 5 = 666.

1478665125 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1478665125 - 2⁷ = 1478664997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478665127) 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 159 ways as a sum of consecutive naturals, for example, 2196789 + ... + 2197461.

Almost surely, 2^1478665125 is an apocalyptic number.

1478665125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1478665125 is an abundant number, since it is smaller than the sum of its proper divisors (1778275419).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1478665125 is an equidigital number, since it uses as much as digits as its factorization.

1478665125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 719 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1478665125 is about 38453.4149978906. The cubic root of 1478665125 is about 1139.2611209297.

The spelling of 1478665125 in words is "one billion, four hundred seventy-eight million, six hundred sixty-five thousand, one hundred twenty-five".