133875155 has 8 divisors (see below), whose sum is σ = 161276832. Its totient is φ = 106682368.

The previous prime is 133875101. The next prime is 133875169. The reversal of 133875155 is 551578331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133875155 - 2⁸ = 133874899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50807 + ... + 53376.

It is an arithmetic number, because the mean of its divisors is an integer number (20159604).

Almost surely, 2^133875155 is an apocalyptic number.

133875155 is a deficient number, since it is larger than the sum of its proper divisors (27401677).

133875155 is a wasteful number, since it uses less digits than its factorization.

133875155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104445.

The product of its digits is 63000, while the sum is 38.

The square root of 133875155 is about 11570.4431635093. The cubic root of 133875155 is about 511.5640247708.

The spelling of 133875155 in words is "one hundred thirty-three million, eight hundred seventy-five thousand, one hundred fifty-five".