475139 has 8 divisors (see below), whose sum is σ = 549120. Its totient is φ = 402696.

The previous prime is 475109. The next prime is 475141. The reversal of 475139 is 931574.

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

It is a de Polignac number, because none of the positive numbers 2^k-475139 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 475139.

It is not an unprimeable number, because it can be changed into a prime (475109) 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, 392 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2⁴⁷⁵¹³⁹ is an apocalyptic number.

475139 is a deficient number, since it is larger than the sum of its proper divisors (73981).

475139 is a wasteful number, since it uses less digits than its factorization.

475139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its digits is 3780, while the sum is 29.

The square root of 475139 is about 689.3032714270. The cubic root of 475139 is about 78.0321476077.

The spelling of 475139 in words is "four hundred seventy-five thousand, one hundred thirty-nine".