135423054 has 96 divisors (see below), whose sum is σ = 340835040. Its totient is φ = 38486016.

The previous prime is 135423053. The next prime is 135423059. The reversal of 135423054 is 450324531.

135423054 is a `hidden beast` number, since 1 + 354 + 2 + 305 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234414 + ... + 234990.

It is an arithmetic number, because the mean of its divisors is an integer number (3550365).

Almost surely, 2^135423054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135423054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170417520).

135423054 is an abundant number, since it is smaller than the sum of its proper divisors (205411986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135423054 is a wasteful number, since it uses less digits than its factorization.

135423054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 135423054 is about 11637.1411437689. The cubic root of 135423054 is about 513.5280860895.

Adding to 135423054 its reverse (450324531), we get a palindrome (585747585).

The spelling of 135423054 in words is "one hundred thirty-five million, four hundred twenty-three thousand, fifty-four".