478543157 has 4 divisors (see below), whose sum is σ = 478604556. Its totient is φ = 478481760.

The previous prime is 478543133. The next prime is 478543207. The reversal of 478543157 is 751345874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173027716 + 305515441 = 13154^2 + 17479^2 .

It is a cyclic number.

It is not a de Polignac number, because 478543157 - 2⁸ = 478542901 is a prime.

It is a super-2 number, since 2×478543157² = 458007106223053298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478543657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16958 + ... + 35279.

It is an arithmetic number, because the mean of its divisors is an integer number (119651139).

Almost surely, 2^478543157 is an apocalyptic number.

It is an amenable number.

478543157 is a deficient number, since it is larger than the sum of its proper divisors (61399).

478543157 is an equidigital number, since it uses as much as digits as its factorization.

478543157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61398.

The product of its digits is 470400, while the sum is 44.

The square root of 478543157 is about 21875.6292938055. The cubic root of 478543157 is about 782.1805938831.

The spelling of 478543157 in words is "four hundred seventy-eight million, five hundred forty-three thousand, one hundred fifty-seven".