133744669 has 2 divisors, whose sum is σ = 133744670. Its totient is φ = 133744668.

The previous prime is 133744651. The next prime is 133744673. The reversal of 133744669 is 966447331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120165444 + 13579225 = 10962^2 + 3685^2 .

It is a cyclic number.

It is not a de Polignac number, because 133744669 - 2⁹ = 133744157 is a prime.

It is a super-2 number, since 2×133744669² = 35775272971839122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133744619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66872334 + 66872335.

It is an arithmetic number, because the mean of its divisors is an integer number (66872335).

Almost surely, 2^133744669 is an apocalyptic number.

It is an amenable number.

133744669 is a deficient number, since it is larger than the sum of its proper divisors (1).

133744669 is an equidigital number, since it uses as much as digits as its factorization.

133744669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 133744669 is about 11564.8030246952. The cubic root of 133744669 is about 511.3977662831.

The spelling of 133744669 in words is "one hundred thirty-three million, seven hundred forty-four thousand, six hundred sixty-nine".