133965747 has 6 divisors (see below), whose sum is σ = 193506092. Its totient is φ = 89310492.

The previous prime is 133965743. The next prime is 133965749. The reversal of 133965747 is 747569331.

It is not a de Polignac number, because 133965747 - 2² = 133965743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133965743) 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, 7442533 + ... + 7442550.

Almost surely, 2^133965747 is an apocalyptic number.

133965747 is a deficient number, since it is larger than the sum of its proper divisors (59540345).

133965747 is a wasteful number, since it uses less digits than its factorization.

133965747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14885089 (or 14885086 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 133965747 is about 11574.3573039716. The cubic root of 133965747 is about 511.6793888667.

The spelling of 133965747 in words is "one hundred thirty-three million, nine hundred sixty-five thousand, seven hundred forty-seven".