135204406 has 8 divisors (see below), whose sum is σ = 202920840. Its totient is φ = 67564128.

The previous prime is 135204403. The next prime is 135204457. The reversal of 135204406 is 604402531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135204403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14371 + ... + 21838.

It is an arithmetic number, because the mean of its divisors is an integer number (25365105).

Almost surely, 2^135204406 is an apocalyptic number.

135204406 is a deficient number, since it is larger than the sum of its proper divisors (67716434).

135204406 is a wasteful number, since it uses less digits than its factorization.

135204406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38078.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 135204406 is about 11627.7429452151. The cubic root of 135204406 is about 513.2515640637.

Adding to 135204406 its reverse (604402531), we get a palindrome (739606937).

The spelling of 135204406 in words is "one hundred thirty-five million, two hundred four thousand, four hundred six".