133333349 has 8 divisors (see below), whose sum is σ = 134985720. Its totient is φ = 131691456.

The previous prime is 133333327. The next prime is 133333357. The reversal of 133333349 is 943333331.

It can be written as a sum of positive squares in 4 ways, for example, as 78676900 + 54656449 = 8870^2 + 7393^2 .

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 133333349 - 2²⁰ = 132284773 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333309) 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, 24707 + ... + 29615.

It is an arithmetic number, because the mean of its divisors is an integer number (16873215).

Almost surely, 2^133333349 is an apocalyptic number.

It is an amenable number.

133333349 is a deficient number, since it is larger than the sum of its proper divisors (1652371).

133333349 is a wasteful number, since it uses less digits than its factorization.

133333349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239.

The product of its digits is 26244, while the sum is 32.

The square root of 133333349 is about 11547.0060621791. The cubic root of 133333349 is about 510.8729749382.

The spelling of 133333349 in words is "one hundred thirty-three million, three hundred thirty-three thousand, three hundred forty-nine".