478135451 has 2 divisors, whose sum is σ = 478135452. Its totient is φ = 478135450.

The previous prime is 478135433. The next prime is 478135543. The reversal of 478135451 is 154531874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478135451 - 2¹⁰ = 478134427 is a prime.

It is a super-2 number, since 2×478135451² = 457227019005946802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478135951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239067725 + 239067726.

It is an arithmetic number, because the mean of its divisors is an integer number (239067726).

Almost surely, 2^478135451 is an apocalyptic number.

478135451 is a deficient number, since it is larger than the sum of its proper divisors (1).

478135451 is an equidigital number, since it uses as much as digits as its factorization.

478135451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 38.

The square root of 478135451 is about 21866.3085819258. The cubic root of 478135451 is about 781.9583984384.

The spelling of 478135451 in words is "four hundred seventy-eight million, one hundred thirty-five thousand, four hundred fifty-one".