475452139 has 8 divisors (see below), whose sum is σ = 488758752. Its totient is φ = 462329280.

The previous prime is 475452127. The next prime is 475452163. The reversal of 475452139 is 931254574.

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 475452139 - 2⁷ = 475452011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475452119) 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 7 ways as a sum of consecutive naturals, for example, 40684 + ... + 51049.

It is an arithmetic number, because the mean of its divisors is an integer number (61094844).

Almost surely, 2^475452139 is an apocalyptic number.

475452139 is a deficient number, since it is larger than the sum of its proper divisors (13306613).

475452139 is an equidigital number, since it uses as much as digits as its factorization.

475452139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91877.

The product of its digits is 151200, while the sum is 40.

The square root of 475452139 is about 21804.8650305385. The cubic root of 475452139 is about 780.4928613114.

The spelling of 475452139 in words is "four hundred seventy-five million, four hundred fifty-two thousand, one hundred thirty-nine".