135311455 has 4 divisors (see below), whose sum is σ = 162373752. Its totient is φ = 108249160.

The previous prime is 135311447. The next prime is 135311471. The reversal of 135311455 is 554113531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 135311455 - 2³ = 135311447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13531141 + ... + 13531150.

It is an arithmetic number, because the mean of its divisors is an integer number (40593438).

Almost surely, 2^135311455 is an apocalyptic number.

135311455 is a deficient number, since it is larger than the sum of its proper divisors (27062297).

135311455 is an equidigital number, since it uses as much as digits as its factorization.

135311455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27062296.

The product of its digits is 4500, while the sum is 28.

The square root of 135311455 is about 11632.3452063632. The cubic root of 135311455 is about 513.3869851252.

Adding to 135311455 its reverse (554113531), we get a palindrome (689424986).

The spelling of 135311455 in words is "one hundred thirty-five million, three hundred eleven thousand, four hundred fifty-five".