133001004 has 48 divisors (see below), whose sum is σ = 315076608. Its totient is φ = 43662528.

The previous prime is 133000999. The next prime is 133001027. The reversal of 133001004 is 400100331.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300007 + ... + 300449.

It is an arithmetic number, because the mean of its divisors is an integer number (6564096).

Almost surely, 2^133001004 is an apocalyptic number.

It is an amenable number.

133001004 is an abundant number, since it is smaller than the sum of its proper divisors (182075604).

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

133001004 is a wasteful number, since it uses less digits than its factorization.

133001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 133001004 is about 11532.6061235091. The cubic root of 133001004 is about 510.4481566296.

Adding to 133001004 its reverse (400100331), we get a palindrome (533101335).

The spelling of 133001004 in words is "one hundred thirty-three million, one thousand, four".