133313004 has 36 divisors (see below), whose sum is σ = 367621800. Its totient is φ = 40397760.

The previous prime is 133312957. The next prime is 133313057. The reversal of 133313004 is 400313331.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167929 + ... + 168720.

Almost surely, 2^133313004 is an apocalyptic number.

It is an amenable number.

133313004 is an abundant number, since it is smaller than the sum of its proper divisors (234308796).

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

133313004 is a wasteful number, since it uses less digits than its factorization.

133313004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336670 (or 336665 counting only the distinct ones).

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

The square root of 133313004 is about 11546.1250642802. The cubic root of 133313004 is about 510.8469893429.

Adding to 133313004 its reverse (400313331), we get a palindrome (533626335).

The spelling of 133313004 in words is "one hundred thirty-three million, three hundred thirteen thousand, four".