133232004 has 18 divisors (see below), whose sum is σ = 336780990. Its totient is φ = 44410656.

The previous prime is 133231949. The next prime is 133232023. The reversal of 133232004 is 400232331.

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 17239104 = 10770^2 + 4152^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 1850409 + ... + 1850480.

It is an arithmetic number, because the mean of its divisors is an integer number (18710055).

Almost surely, 2^133232004 is an apocalyptic number.

It is an amenable number.

133232004 is an abundant number, since it is smaller than the sum of its proper divisors (203548986).

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

133232004 is a wasteful number, since it uses less digits than its factorization.

133232004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700899 (or 3700894 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 133232004 is about 11542.6168610069. The cubic root of 133232004 is about 510.7435060912.

Adding to 133232004 its reverse (400232331), we get a palindrome (533464335).

The spelling of 133232004 in words is "one hundred thirty-three million, two hundred thirty-two thousand, four".