133343387 has 8 divisors (see below), whose sum is σ = 143626560. Its totient is φ = 123386760.

The previous prime is 133343347. The next prime is 133343417. The reversal of 133343387 is 783343331.

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

It is not a de Polignac number, because 133343387 - 2⁶ = 133343323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133343317) 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, 80789 + ... + 82422.

It is an arithmetic number, because the mean of its divisors is an integer number (17953320).

Almost surely, 2^133343387 is an apocalyptic number.

133343387 is a deficient number, since it is larger than the sum of its proper divisors (10283173).

133343387 is a wasteful number, since it uses less digits than its factorization.

133343387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163273.

The product of its digits is 54432, while the sum is 35.

The square root of 133343387 is about 11547.4407121232. The cubic root of 133343387 is about 510.8857949723.

The spelling of 133343387 in words is "one hundred thirty-three million, three hundred forty-three thousand, three hundred eighty-seven".