135284819 has 2 divisors, whose sum is σ = 135284820. Its totient is φ = 135284818.

The previous prime is 135284813. The next prime is 135284857. The reversal of 135284819 is 918482531.

It is a weak prime.

It is an emirp because it is prime and its reverse (918482531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135284819 - 2⁸ = 135284563 is a prime.

It is a super-2 number, since 2×135284819² = 36603964503725522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135284813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67642409 + 67642410.

It is an arithmetic number, because the mean of its divisors is an integer number (67642410).

Almost surely, 2^135284819 is an apocalyptic number.

135284819 is a deficient number, since it is larger than the sum of its proper divisors (1).

135284819 is an equidigital number, since it uses as much as digits as its factorization.

135284819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 135284819 is about 11631.2002390123. The cubic root of 135284819 is about 513.3532962477.

The spelling of 135284819 in words is "one hundred thirty-five million, two hundred eighty-four thousand, eight hundred nineteen".