133423849 has 8 divisors (see below), whose sum is σ = 143986752. Its totient is φ = 122903760.

The previous prime is 133423841. The next prime is 133423853. The reversal of 133423849 is 948324331.

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 133423849 - 2³ = 133423841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133423841) 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, 4069 + ... + 16834.

It is an arithmetic number, because the mean of its divisors is an integer number (17998344).

Almost surely, 2^133423849 is an apocalyptic number.

It is an amenable number.

133423849 is a deficient number, since it is larger than the sum of its proper divisors (10562903).

133423849 is a wasteful number, since it uses less digits than its factorization.

133423849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21407.

The product of its digits is 62208, while the sum is 37.

The square root of 133423849 is about 11550.9241621612. The cubic root of 133423849 is about 510.9885337940.

The spelling of 133423849 in words is "one hundred thirty-three million, four hundred twenty-three thousand, eight hundred forty-nine".