133225113 has 16 divisors (see below), whose sum is σ = 207962496. Its totient is φ = 74271360.

The previous prime is 133225111. The next prime is 133225153. The reversal of 133225113 is 311522331.

It is not a de Polignac number, because 133225113 - 2¹ = 133225111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133225113.

It is not an unprimeable number, because it can be changed into a prime (133225111) 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, 76506 + ... + 78227.

It is an arithmetic number, because the mean of its divisors is an integer number (12997656).

Almost surely, 2^133225113 is an apocalyptic number.

It is an amenable number.

133225113 is a deficient number, since it is larger than the sum of its proper divisors (74737383).

133225113 is a wasteful number, since it uses less digits than its factorization.

133225113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154784.

The product of its digits is 540, while the sum is 21.

The square root of 133225113 is about 11542.3183546461. The cubic root of 133225113 is about 510.7347004137.

Adding to 133225113 its reverse (311522331), we get a palindrome (444747444).

The spelling of 133225113 in words is "one hundred thirty-three million, two hundred twenty-five thousand, one hundred thirteen".