133975137 has 8 divisors (see below), whose sum is σ = 188035360. Its totient is φ = 84615840.

The previous prime is 133975117. The next prime is 133975151. The reversal of 133975137 is 731579331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133975137 - 2²⁰ = 132926561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133975095 and 133975104.

It is not an unprimeable number, because it can be changed into a prime (133975117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175164 + ... + 1175277.

It is an arithmetic number, because the mean of its divisors is an integer number (23504420).

Almost surely, 2^133975137 is an apocalyptic number.

It is an amenable number.

133975137 is a deficient number, since it is larger than the sum of its proper divisors (54060223).

133975137 is a wasteful number, since it uses less digits than its factorization.

133975137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350463.

The product of its digits is 59535, while the sum is 39.

The square root of 133975137 is about 11574.7629349374. The cubic root of 133975137 is about 511.6913435574.

The spelling of 133975137 in words is "one hundred thirty-three million, nine hundred seventy-five thousand, one hundred thirty-seven".