135418259 has 2 divisors, whose sum is σ = 135418260. Its totient is φ = 135418258.

The previous prime is 135418253. The next prime is 135418271. The reversal of 135418259 is 952814531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135418259 is a prime.

It is not a weakly prime, because it can be changed into another prime (135418253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67709129 + 67709130.

It is an arithmetic number, because the mean of its divisors is an integer number (67709130).

Almost surely, 2^135418259 is an apocalyptic number.

135418259 is a deficient number, since it is larger than the sum of its proper divisors (1).

135418259 is an equidigital number, since it uses as much as digits as its factorization.

135418259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 135418259 is about 11636.9351205547. The cubic root of 135418259 is about 513.5220250923.

The spelling of 135418259 in words is "one hundred thirty-five million, four hundred eighteen thousand, two hundred fifty-nine".