133975655 has 8 divisors (see below), whose sum is σ = 175386384. Its totient is φ = 97436800.

The previous prime is 133975643. The next prime is 133975687. The reversal of 133975655 is 556579331.

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

It is not a de Polignac number, because 133975655 - 2²⁰ = 132927079 is a prime.

It is a super-2 number, since 2×133975655² = 35898952265358050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 1217906 + ... + 1218015.

It is an arithmetic number, because the mean of its divisors is an integer number (21923298).

Almost surely, 2^133975655 is an apocalyptic number.

133975655 is a deficient number, since it is larger than the sum of its proper divisors (41410729).

133975655 is a wasteful number, since it uses less digits than its factorization.

133975655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435937.

The product of its digits is 425250, while the sum is 44.

The square root of 133975655 is about 11574.7853111840. The cubic root of 133975655 is about 511.6920030225.

The spelling of 133975655 in words is "one hundred thirty-three million, nine hundred seventy-five thousand, six hundred fifty-five".