133391226 has 16 divisors (see below), whose sum is σ = 267364224. Its totient is φ = 44366784.

The previous prime is 133391177. The next prime is 133391227. The reversal of 133391226 is 622193331.

It is a junction number, because it is equal to n+sod(n) for n = 133391193 and 133391202.

It is not an unprimeable number, because it can be changed into a prime (133391227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21231 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (16710264).

Almost surely, 2^133391226 is an apocalyptic number.

133391226 is an abundant number, since it is smaller than the sum of its proper divisors (133972998).

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

133391226 is a wasteful number, since it uses less digits than its factorization.

133391226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48485.

The product of its digits is 5832, while the sum is 30.

The square root of 133391226 is about 11549.5119377401. The cubic root of 133391226 is about 510.9468837245.

The spelling of 133391226 in words is "one hundred thirty-three million, three hundred ninety-one thousand, two hundred twenty-six".