133815227 has 12 divisors (see below), whose sum is σ = 167637456. Its totient is φ = 105875280.

The previous prime is 133815223. The next prime is 133815257. The reversal of 133815227 is 722518331.

It is not a de Polignac number, because 133815227 - 2² = 133815223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133815193 and 133815202.

It is not an unprimeable number, because it can be changed into a prime (133815223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104399 + ... + 105672.

It is an arithmetic number, because the mean of its divisors is an integer number (13969788).

Almost surely, 2^133815227 is an apocalyptic number.

133815227 is a deficient number, since it is larger than the sum of its proper divisors (33822229).

133815227 is a wasteful number, since it uses less digits than its factorization.

133815227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210098 (or 210091 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 133815227 is about 11567.8531716131. The cubic root of 133815227 is about 511.4876810448.

The spelling of 133815227 in words is "one hundred thirty-three million, eight hundred fifteen thousand, two hundred twenty-seven".