857030133 has 8 divisors (see below), whose sum is σ = 1142910496. Its totient is φ = 571251600.

The previous prime is 857030107. The next prime is 857030171. The reversal of 857030133 is 331030758.

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

It is not a de Polignac number, because 857030133 - 2¹⁷ = 856899061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 857030133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857030833) 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, 2983 + ... + 41508.

It is an arithmetic number, because the mean of its divisors is an integer number (142863812).

Almost surely, 2^857030133 is an apocalyptic number.

It is an amenable number.

857030133 is a deficient number, since it is larger than the sum of its proper divisors (285880363).

857030133 is a wasteful number, since it uses less digits than its factorization.

857030133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50915.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 857030133 is about 29275.0769939210. The cubic root of 857030133 is about 949.8726082180.

The spelling of 857030133 in words is "eight hundred fifty-seven million, thirty thousand, one hundred thirty-three".