478134539 has 2 divisors, whose sum is σ = 478134540. Its totient is φ = 478134538.

The previous prime is 478134499. The next prime is 478134541. The reversal of 478134539 is 935431874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478134539 - 2¹⁶ = 478069003 is a prime.

It is a super-2 number, since 2×478134539² = 457225274769485042, which contains 22 as substring.

Together with 478134541, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478134539.

It is not a weakly prime, because it can be changed into another prime (478134599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239067269 + 239067270.

It is an arithmetic number, because the mean of its divisors is an integer number (239067270).

Almost surely, 2^478134539 is an apocalyptic number.

478134539 is a deficient number, since it is larger than the sum of its proper divisors (1).

478134539 is an equidigital number, since it uses as much as digits as its factorization.

478134539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 478134539 is about 21866.2877279158. The cubic root of 478134539 is about 781.9579012665.

The spelling of 478134539 in words is "four hundred seventy-eight million, one hundred thirty-four thousand, five hundred thirty-nine".