133838847 has 12 divisors (see below), whose sum is σ = 193787464. Its totient is φ = 89011440.

The previous prime is 133838839. The next prime is 133838851. The reversal of 133838847 is 748838331.

It is not a de Polignac number, because 133838847 - 2³ = 133838839 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 (133838867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13873 + ... + 21450.

Almost surely, 2^133838847 is an apocalyptic number.

133838847 is a deficient number, since it is larger than the sum of its proper divisors (59948617).

133838847 is a wasteful number, since it uses less digits than its factorization.

133838847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35750 (or 35747 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 133838847 is about 11568.8740593024. The cubic root of 133838847 is about 511.5177738540.

The spelling of 133838847 in words is "one hundred thirty-three million, eight hundred thirty-eight thousand, eight hundred forty-seven".