133844497 has 2 divisors, whose sum is σ = 133844498. Its totient is φ = 133844496.

The previous prime is 133844467. The next prime is 133844549. The reversal of 133844497 is 794448331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77158656 + 56685841 = 8784^2 + 7529^2 .

It is a cyclic number.

It is not a de Polignac number, because 133844497 - 2⁷ = 133844369 is a prime.

It is not a weakly prime, because it can be changed into another prime (133844467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66922248 + 66922249.

It is an arithmetic number, because the mean of its divisors is an integer number (66922249).

Almost surely, 2^133844497 is an apocalyptic number.

It is an amenable number.

133844497 is a deficient number, since it is larger than the sum of its proper divisors (1).

133844497 is an equidigital number, since it uses as much as digits as its factorization.

133844497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 133844497 is about 11569.1182464352. The cubic root of 133844497 is about 511.5249716515.

The spelling of 133844497 in words is "one hundred thirty-three million, eight hundred forty-four thousand, four hundred ninety-seven".