135404222 has 32 divisors (see below), whose sum is σ = 220540320. Its totient is φ = 62138880.

The previous prime is 135404221. The next prime is 135404231. The reversal of 135404222 is 222404531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135404221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362828 + ... + 363200.

It is an arithmetic number, because the mean of its divisors is an integer number (6891885).

Almost surely, 2^135404222 is an apocalyptic number.

135404222 is a deficient number, since it is larger than the sum of its proper divisors (85136098).

135404222 is a wasteful number, since it uses less digits than its factorization.

135404222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 135404222 is about 11636.3319822013. The cubic root of 135404222 is about 513.5042811588.

Adding to 135404222 its reverse (222404531), we get a palindrome (357808753).

The spelling of 135404222 in words is "one hundred thirty-five million, four hundred four thousand, two hundred twenty-two".