133345583 has 8 divisors (see below), whose sum is σ = 152487552. Its totient is φ = 114226776.

The previous prime is 133345579. The next prime is 133345621. The reversal of 133345583 is 385543331.

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 133345583 - 2² = 133345579 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133345543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9116 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (19060944).

Almost surely, 2^133345583 is an apocalyptic number.

133345583 is a deficient number, since it is larger than the sum of its proper divisors (19141969).

133345583 is an equidigital number, since it uses as much as digits as its factorization.

133345583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11581.

The product of its digits is 64800, while the sum is 35.

The square root of 133345583 is about 11547.5357977362. The cubic root of 133345583 is about 510.8885995085. Note that the first 3 decimals are identical.

The spelling of 133345583 in words is "one hundred thirty-three million, three hundred forty-five thousand, five hundred eighty-three".