133324001 has 4 divisors (see below), whose sum is σ = 133681812. Its totient is φ = 132966192.

The previous prime is 133323997. The next prime is 133324019. The reversal of 133324001 is 100423331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29691601 + 103632400 = 5449^2 + 10180^2 .

It is a cyclic number.

It is not a de Polignac number, because 133324001 - 2² = 133323997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133324021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178346 + ... + 179091.

It is an arithmetic number, because the mean of its divisors is an integer number (33420453).

Almost surely, 2^133324001 is an apocalyptic number.

It is an amenable number.

133324001 is a deficient number, since it is larger than the sum of its proper divisors (357811).

133324001 is an equidigital number, since it uses as much as digits as its factorization.

133324001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357810.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133324001 is about 11546.6012748341. The cubic root of 133324001 is about 510.8610355592.

Adding to 133324001 its reverse (100423331), we get a palindrome (233747332).

The spelling of 133324001 in words is "one hundred thirty-three million, three hundred twenty-four thousand, one".