478135543 has 2 divisors, whose sum is σ = 478135544. Its totient is φ = 478135542.

The previous prime is 478135451. The next prime is 478135547. The reversal of 478135543 is 345531874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478135543 is a prime.

It is a super-2 number, since 2×478135543² = 457227194959809698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478135496 and 478135505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478135547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239067771 + 239067772.

It is an arithmetic number, because the mean of its divisors is an integer number (239067772).

Almost surely, 2^478135543 is an apocalyptic number.

478135543 is a deficient number, since it is larger than the sum of its proper divisors (1).

478135543 is an equidigital number, since it uses as much as digits as its factorization.

478135543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 478135543 is about 21866.3106856186. The cubic root of 478135543 is about 781.9584485916.

The spelling of 478135543 in words is "four hundred seventy-eight million, one hundred thirty-five thousand, five hundred forty-three".