135642266 has 8 divisors (see below), whose sum is σ = 203538720. Its totient is φ = 67796028.

The previous prime is 135642257. The next prime is 135642277. The reversal of 135642266 is 662246531.

It is a happy number.

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

It is a super-2 number, since 2×135642266² = 36797648651229512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4856 + ... + 17171.

It is an arithmetic number, because the mean of its divisors is an integer number (25442340).

Almost surely, 2^135642266 is an apocalyptic number.

135642266 is a deficient number, since it is larger than the sum of its proper divisors (67896454).

135642266 is a wasteful number, since it uses less digits than its factorization.

135642266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25108.

The product of its digits is 51840, while the sum is 35.

The square root of 135642266 is about 11646.5559716167. Note that the first 3 decimals coincide. The cubic root of 135642266 is about 513.8050227691.

Adding to 135642266 its reverse (662246531), we get a palindrome (797888797).

The spelling of 135642266 in words is "one hundred thirty-five million, six hundred forty-two thousand, two hundred sixty-six".