478157459 has 4 divisors (see below), whose sum is σ = 514938816. Its totient is φ = 441376104.

The previous prime is 478157447. The next prime is 478157503. The reversal of 478157459 is 954751874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954751874 = 2 ⋅477375937.

It is not a de Polignac number, because 478157459 - 2⁸ = 478157203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478157429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18390659 + ... + 18390684.

It is an arithmetic number, because the mean of its divisors is an integer number (128734704).

Almost surely, 2^478157459 is an apocalyptic number.

478157459 is a deficient number, since it is larger than the sum of its proper divisors (36781357).

478157459 is a wasteful number, since it uses less digits than its factorization.

478157459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36781356.

The product of its digits is 1411200, while the sum is 50.

The square root of 478157459 is about 21866.8118160833. The cubic root of 478157459 is about 781.9703957893.

The spelling of 478157459 in words is "four hundred seventy-eight million, one hundred fifty-seven thousand, four hundred fifty-nine".