135623455 has 12 divisors (see below), whose sum is σ = 178889256. Its totient is φ = 98634800.

The previous prime is 135623447. The next prime is 135623461. The reversal of 135623455 is 554326531.

135623455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135623455 - 2³ = 135623447 is a prime.

It is a super-2 number, since 2×135623455² = 36787443092274050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135623455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111481 + ... + 112690.

It is an arithmetic number, because the mean of its divisors is an integer number (14907438).

Almost surely, 2^135623455 is an apocalyptic number.

135623455 is a deficient number, since it is larger than the sum of its proper divisors (43265801).

135623455 is a wasteful number, since it uses less digits than its factorization.

135623455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224198 (or 224187 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 135623455 is about 11645.7483658200. The cubic root of 135623455 is about 513.7812700127.

Adding to 135623455 its reverse (554326531), we get a palindrome (689949986).

The spelling of 135623455 in words is "one hundred thirty-five million, six hundred twenty-three thousand, four hundred fifty-five".