475149 has 8 divisors (see below), whose sum is σ = 649152. Its totient is φ = 308960.

The previous prime is 475147. The next prime is 475151. The reversal of 475149 is 941574.

475149 = 87² + 88² + ... + 127².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (475147) and next prime (475151).

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

It is a cyclic number.

It is not a de Polignac number, because 475149 - 2¹ = 475147 is a prime.

475149 is a lucky number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1809 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (81144).

2⁴⁷⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

475149 is a deficient number, since it is larger than the sum of its proper divisors (174003).

475149 is a wasteful number, since it uses less digits than its factorization.

475149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907.

The product of its digits is 5040, while the sum is 30.

The square root of 475149 is about 689.3105250901. The cubic root of 475149 is about 78.0326950376.

The spelling of 475149 in words is "four hundred seventy-five thousand, one hundred forty-nine".