33397133 has 8 divisors (see below), whose sum is σ = 41638080. Its totient is φ = 26023680.

The previous prime is 33397121. The next prime is 33397139. The reversal of 33397133 is 33179333.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33397133 - 2⁸ = 33396877 is a prime.

It is a super-2 number, since 2×33397133² = 2230736985239378, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33397133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33397139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216788 + ... + 216941.

It is an arithmetic number, because the mean of its divisors is an integer number (5204760).

Almost surely, 2^33397133 is an apocalyptic number.

It is an amenable number.

33397133 is a deficient number, since it is larger than the sum of its proper divisors (8240947).

33397133 is a wasteful number, since it uses less digits than its factorization.

33397133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433747.

The product of its digits is 15309, while the sum is 32.

The square root of 33397133 is about 5779.0252638313. The cubic root of 33397133 is about 322.0349903465.

The spelling of 33397133 in words is "thirty-three million, three hundred ninety-seven thousand, one hundred thirty-three".