475144121 has 16 divisors (see below), whose sum is σ = 505197840. Its totient is φ = 446238720.

The previous prime is 475144073. The next prime is 475144123. The reversal of 475144121 is 121441574.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15642025 + 459502096 = 3955^2 + 21436^2 .

It is a cyclic number.

It is not a de Polignac number, because 475144121 - 2¹⁸ = 474881977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475144123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145535 + ... + 148763.

It is an arithmetic number, because the mean of its divisors is an integer number (31574865).

Almost surely, 2^475144121 is an apocalyptic number.

475144121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

475144121 is a deficient number, since it is larger than the sum of its proper divisors (30053719).

475144121 is a wasteful number, since it uses less digits than its factorization.

475144121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its digits is 4480, while the sum is 29.

The square root of 475144121 is about 21797.8008294415. The cubic root of 475144121 is about 780.3242794752.

Adding to 475144121 its reverse (121441574), we get a palindrome (596585695).

The spelling of 475144121 in words is "four hundred seventy-five million, one hundred forty-four thousand, one hundred twenty-one".