133105230 has 24 divisors (see below), whose sum is σ = 346073832. Its totient is φ = 35494704.

The previous prime is 133105213. The next prime is 133105237. The reversal of 133105230 is 32501331.

133105230 is a `hidden beast` number, since 133 + 10 + 523 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133105237) 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, 739384 + ... + 739563.

It is an arithmetic number, because the mean of its divisors is an integer number (14419743).

Almost surely, 2^133105230 is an apocalyptic number.

133105230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133105230 is an abundant number, since it is smaller than the sum of its proper divisors (212968602).

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

133105230 is a wasteful number, since it uses less digits than its factorization.

133105230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478960 (or 1478957 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 133105230 is about 11537.1239917061. The cubic root of 133105230 is about 510.5814590780.

Adding to 133105230 its reverse (32501331), we get a palindrome (165606561).

The spelling of 133105230 in words is "one hundred thirty-three million, one hundred five thousand, two hundred thirty".