135234017420 has 24 divisors (see below), whose sum is σ = 293784246000. Its totient is φ = 52228309952.

The previous prime is 135234017411. The next prime is 135234017423. The reversal of 135234017420 is 24710432531.

It is not an unprimeable number, because it can be changed into a prime (135234017423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116580470 + ... + 116581629.

It is an arithmetic number, because the mean of its divisors is an integer number (12241010250).

Almost surely, 2^135234017420 is an apocalyptic number.

135234017420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135234017420 is an abundant number, since it is smaller than the sum of its proper divisors (158550228580).

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

135234017420 is a wasteful number, since it uses less digits than its factorization.

135234017420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233162137 (or 233162135 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 135234017420 its reverse (24710432531), we get a palindrome (159944449951).

The spelling of 135234017420 in words is "one hundred thirty-five billion, two hundred thirty-four million, seventeen thousand, four hundred twenty".