133155836 has 24 divisors (see below), whose sum is σ = 254956464. Its totient is φ = 60346880.

The previous prime is 133155833. The next prime is 133155871. The reversal of 133155836 is 638551331.

It is a junction number, because it is equal to n+sod(n) for n = 133155796 and 133155805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133155833) 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, 11246 + ... + 19818.

It is an arithmetic number, because the mean of its divisors is an integer number (10623186).

Almost surely, 2^133155836 is an apocalyptic number.

It is an amenable number.

133155836 is a deficient number, since it is larger than the sum of its proper divisors (121800628).

133155836 is a wasteful number, since it uses less digits than its factorization.

133155836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8941 (or 8939 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 133155836 is about 11539.3169641881. The cubic root of 133155836 is about 510.6461577916.

The spelling of 133155836 in words is "one hundred thirty-three million, one hundred fifty-five thousand, eight hundred thirty-six".