133365238 has 8 divisors (see below), whose sum is σ = 211815432. Its totient is φ = 62760096.

The previous prime is 133365227. The next prime is 133365241. The reversal of 133365238 is 832563331.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 3922507 = 133365238 / (1 + 3 + 3 + 3 + 6 + 5 + 2 + 3 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961220 + ... + 1961287.

It is an arithmetic number, because the mean of its divisors is an integer number (26476929).

Almost surely, 2^133365238 is an apocalyptic number.

133365238 is a deficient number, since it is larger than the sum of its proper divisors (78450194).

133365238 is a wasteful number, since it uses less digits than its factorization.

133365238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922526.

The product of its digits is 38880, while the sum is 34.

The square root of 133365238 is about 11548.3868137502. The cubic root of 133365238 is about 510.9136997577.

The spelling of 133365238 in words is "one hundred thirty-three million, three hundred sixty-five thousand, two hundred thirty-eight".