135421230 has 32 divisors (see below), whose sum is σ = 371441664. Its totient is φ = 30953376.

The previous prime is 135421229. The next prime is 135421249. The reversal of 135421230 is 32124531.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 135421197 and 135421206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322222 + ... + 322641.

It is an arithmetic number, because the mean of its divisors is an integer number (11607552).

Almost surely, 2^135421230 is an apocalyptic number.

135421230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135421230 is an abundant number, since it is smaller than the sum of its proper divisors (236020434).

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

135421230 is a wasteful number, since it uses less digits than its factorization.

135421230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644880.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 135421230 is about 11637.0627737415. The cubic root of 135421230 is about 513.5257805258.

Adding to 135421230 its reverse (32124531), we get a palindrome (167545761).

The spelling of 135421230 in words is "one hundred thirty-five million, four hundred twenty-one thousand, two hundred thirty".