133126875 has 160 divisors (see below), whose sum is σ = 299904000. Its totient is φ = 58212000.

The previous prime is 133126859. The next prime is 133126883. The reversal of 133126875 is 578621331.

It is not a de Polignac number, because 133126875 - 2⁴ = 133126859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5788114 + ... + 5788136.

It is an arithmetic number, because the mean of its divisors is an integer number (1874400).

Almost surely, 2^133126875 is an apocalyptic number.

133126875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133126875 is an abundant number, since it is smaller than the sum of its proper divisors (166777125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133126875 is an frugal number, since it uses more digits than its factorization.

133126875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 38 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 133126875 is about 11538.0620123139. The cubic root of 133126875 is about 510.6091337649.

The spelling of 133126875 in words is "one hundred thirty-three million, one hundred twenty-six thousand, eight hundred seventy-five".