478323145 has 8 divisors (see below), whose sum is σ = 584818056. Its totient is φ = 375438336.

The previous prime is 478323133. The next prime is 478323151. The reversal of 478323145 is 541323874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 212926464 + 265396681 = 14592^2 + 16291^2 .

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 478323145 - 2⁷ = 478323017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902232 + ... + 902761.

It is an arithmetic number, because the mean of its divisors is an integer number (73102257).

Almost surely, 2^478323145 is an apocalyptic number.

It is an amenable number.

478323145 is a deficient number, since it is larger than the sum of its proper divisors (106494911).

478323145 is a wasteful number, since it uses less digits than its factorization.

478323145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805051.

The product of its digits is 80640, while the sum is 37.

The square root of 478323145 is about 21870.6000146315. The cubic root of 478323145 is about 782.0607053604.

The spelling of 478323145 in words is "four hundred seventy-eight million, three hundred twenty-three thousand, one hundred forty-five".