857210045 has 8 divisors (see below), whose sum is σ = 1029696000. Its totient is φ = 685072080.

The previous prime is 857209999. The next prime is 857210059. The reversal of 857210045 is 540012758.

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

It is not a de Polignac number, because 857210045 - 2¹² = 857205949 is a prime.

It is a super-2 number, since 2×857210045² = 1469618122497804050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 857209993 and 857210020.

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, 81545 + ... + 91454.

It is an arithmetic number, because the mean of its divisors is an integer number (128712000).

Almost surely, 2^857210045 is an apocalyptic number.

It is an amenable number.

857210045 is a deficient number, since it is larger than the sum of its proper divisors (172485955).

857210045 is a wasteful number, since it uses less digits than its factorization.

857210045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173995.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 857210045 is about 29278.1496170779. The cubic root of 857210045 is about 949.9390708846.

The spelling of 857210045 in words is "eight hundred fifty-seven million, two hundred ten thousand, forty-five".