133455717 has 6 divisors (see below), whose sum is σ = 192769382. Its totient is φ = 88970472.

The previous prime is 133455691. The next prime is 133455719. The reversal of 133455717 is 717554331.

133455717 is a `hidden beast` number, since 133 + 455 + 71 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130850721 + 2604996 = 11439^2 + 1614^2 .

It is not a de Polignac number, because 133455717 - 2¹⁰ = 133454693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133455719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7414198 + ... + 7414215.

Almost surely, 2^133455717 is an apocalyptic number.

It is an amenable number.

133455717 is a deficient number, since it is larger than the sum of its proper divisors (59313665).

133455717 is a wasteful number, since it uses less digits than its factorization.

133455717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14828419 (or 14828416 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 133455717 is about 11552.3035365247. The cubic root of 133455717 is about 511.0292133936.

The spelling of 133455717 in words is "one hundred thirty-three million, four hundred fifty-five thousand, seven hundred seventeen".