475121 has 4 divisors (see below), whose sum is σ = 476532. Its totient is φ = 473712.

The previous prime is 475109. The next prime is 475141. The reversal of 475121 is 121574.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 440896 = 185^2 + 664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475121 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 475093 and 475102.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 475121.

It is not an unprimeable number, because it can be changed into a prime (475141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (119133).

2⁴⁷⁵¹²¹ is an apocalyptic number.

It is an amenable number.

475121 is a deficient number, since it is larger than the sum of its proper divisors (1411).

475121 is an equidigital number, since it uses as much as digits as its factorization.

475121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410.

The product of its digits is 280, while the sum is 20.

The square root of 475121 is about 689.2902146411. The cubic root of 475121 is about 78.0311622143.

Adding to 475121 its reverse (121574), we get a palindrome (596695).

It can be divided in two parts, 475 and 121, that multiplied together give a palindrome (57475).

The spelling of 475121 in words is "four hundred seventy-five thousand, one hundred twenty-one".