135909226 has 4 divisors (see below), whose sum is σ = 203863842. Its totient is φ = 67954612.

The previous prime is 135909217. The next prime is 135909229. The reversal of 135909226 is 622909531.

135909226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622909531 = 29 ⋅21479639.

It can be written as a sum of positive squares in only one way, i.e., 131905225 + 4004001 = 11485^2 + 2001^2 .

It is not an unprimeable number, because it can be changed into a prime (135909229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33977305 + ... + 33977308.

Almost surely, 2^135909226 is an apocalyptic number.

135909226 is a deficient number, since it is larger than the sum of its proper divisors (67954616).

135909226 is an equidigital number, since it uses as much as digits as its factorization.

135909226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67954615.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 135909226 is about 11658.0112369134. The cubic root of 135909226 is about 514.1418781985.

The spelling of 135909226 in words is "one hundred thirty-five million, nine hundred nine thousand, two hundred twenty-six".