135555455 has 16 divisors (see below), whose sum is σ = 187997760. Its totient is φ = 91905792.

The previous prime is 135555451. The next prime is 135555493. The reversal of 135555455 is 554555531.

It is a happy number.

135555455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 135555455 - 2² = 135555451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135555451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18644 + ... + 24873.

It is an arithmetic number, because the mean of its divisors is an integer number (11749860).

Almost surely, 2^135555455 is an apocalyptic number.

135555455 is a deficient number, since it is larger than the sum of its proper divisors (52442305).

135555455 is an equidigital number, since it uses as much as digits as its factorization.

135555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43618.

The product of its digits is 187500, while the sum is 38.

The square root of 135555455 is about 11642.8284793687. The cubic root of 135555455 is about 513.6953877023.

The spelling of 135555455 in words is "one hundred thirty-five million, five hundred fifty-five thousand, four hundred fifty-five".