133742269 has 2 divisors, whose sum is σ = 133742270. Its totient is φ = 133742268.

The previous prime is 133742261. The next prime is 133742293. The reversal of 133742269 is 962247331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 17749369 = 10770^2 + 4213^2 .

It is an emirp because it is prime and its reverse (962247331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133742269 - 2³ = 133742261 is a prime.

It is a super-2 number, since 2×133742269² = 35773989034536722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133742261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66871134 + 66871135.

It is an arithmetic number, because the mean of its divisors is an integer number (66871135).

Almost surely, 2^133742269 is an apocalyptic number.

It is an amenable number.

133742269 is a deficient number, since it is larger than the sum of its proper divisors (1).

133742269 is an equidigital number, since it uses as much as digits as its factorization.

133742269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 133742269 is about 11564.6992611135. The cubic root of 133742269 is about 511.3947073151.

The spelling of 133742269 in words is "one hundred thirty-three million, seven hundred forty-two thousand, two hundred sixty-nine".