133172383 has 2 divisors, whose sum is σ = 133172384. Its totient is φ = 133172382.

The previous prime is 133172371. The next prime is 133172399. The reversal of 133172383 is 383271331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133172383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133172353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66586191 + 66586192.

It is an arithmetic number, because the mean of its divisors is an integer number (66586192).

Almost surely, 2^133172383 is an apocalyptic number.

133172383 is a deficient number, since it is larger than the sum of its proper divisors (1).

133172383 is an equidigital number, since it uses as much as digits as its factorization.

133172383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 133172383 is about 11540.0339254267. The cubic root of 133172383 is about 510.6673092290.

The spelling of 133172383 in words is "one hundred thirty-three million, one hundred seventy-two thousand, three hundred eighty-three".