133858356 has 12 divisors (see below), whose sum is σ = 312336192. Its totient is φ = 44619448.

The previous prime is 133858343. The next prime is 133858379. The reversal of 133858356 is 653858331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5577420 + ... + 5577443.

It is an arithmetic number, because the mean of its divisors is an integer number (26028016).

Almost surely, 2^133858356 is an apocalyptic number.

It is an amenable number.

133858356 is an abundant number, since it is smaller than the sum of its proper divisors (178477836).

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

133858356 is a wasteful number, since it uses less digits than its factorization.

133858356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11154870 (or 11154868 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 133858356 is about 11569.7171961980. The cubic root of 133858356 is about 511.5426264177.

The spelling of 133858356 in words is "one hundred thirty-three million, eight hundred fifty-eight thousand, three hundred fifty-six".