133003134 has 56 divisors (see below), whose sum is σ = 326352312. Its totient is φ = 40299120.

The previous prime is 133003133. The next prime is 133003151. The reversal of 133003134 is 431300331.

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 (133003133) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11892 + ... + 20184.

Almost surely, 2^133003134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133003134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163176156).

133003134 is an abundant number, since it is smaller than the sum of its proper divisors (193349178).

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

133003134 is an equidigital number, since it uses as much as digits as its factorization.

133003134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324 (or 8309 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133003134 is about 11532.6984700026. The cubic root of 133003134 is about 510.4508815433.

Adding to 133003134 its reverse (431300331), we get a palindrome (564303465).

The spelling of 133003134 in words is "one hundred thirty-three million, three thousand, one hundred thirty-four".