135122455 has 32 divisors (see below), whose sum is σ = 182750400. Its totient is φ = 95219712.

The previous prime is 135122441. The next prime is 135122461. The reversal of 135122455 is 554221531.

It is a cyclic number.

It is not a de Polignac number, because 135122455 - 2²¹ = 133025303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182476 + ... + 183214.

It is an arithmetic number, because the mean of its divisors is an integer number (5710950).

Almost surely, 2^135122455 is an apocalyptic number.

135122455 is a deficient number, since it is larger than the sum of its proper divisors (47627945).

135122455 is a wasteful number, since it uses less digits than its factorization.

135122455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its digits is 6000, while the sum is 28.

The square root of 135122455 is about 11624.2184683530. The cubic root of 135122455 is about 513.1478446135.

Adding to 135122455 its reverse (554221531), we get a palindrome (689343986).

The spelling of 135122455 in words is "one hundred thirty-five million, one hundred twenty-two thousand, four hundred fifty-five".