133858028 has 6 divisors (see below), whose sum is σ = 234251556. Its totient is φ = 66929012.

The previous prime is 133858013. The next prime is 133858033. The reversal of 133858028 is 820858331.

It is a junction number, because it is equal to n+sod(n) for n = 133857982 and 133858000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16732250 + ... + 16732257.

It is an arithmetic number, because the mean of its divisors is an integer number (39041926).

Almost surely, 2^133858028 is an apocalyptic number.

It is an amenable number.

133858028 is a deficient number, since it is larger than the sum of its proper divisors (100393528).

133858028 is a wasteful number, since it uses less digits than its factorization.

133858028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33464511 (or 33464509 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 133858028 is about 11569.7030212534. The cubic root of 133858028 is about 511.5422085976.

The spelling of 133858028 in words is "one hundred thirty-three million, eight hundred fifty-eight thousand, twenty-eight".