851130905 has 8 divisors (see below), whose sum is σ = 1021728192. Its totient is φ = 680657328.

The previous prime is 851130881. The next prime is 851130913. The reversal of 851130905 is 509031158.

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

It is a cyclic number.

It is not a de Polignac number, because 851130905 - 2⁸ = 851130649 is a prime.

It is a super-2 number, since 2×851130905² = 1448847634892238050, which contains 22 as substring.

It is a Duffinian 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, 15047 + ... + 43916.

It is an arithmetic number, because the mean of its divisors is an integer number (127716024).

Almost surely, 2^851130905 is an apocalyptic number.

It is an amenable number.

851130905 is a deficient number, since it is larger than the sum of its proper divisors (170597287).

851130905 is a wasteful number, since it uses less digits than its factorization.

851130905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61855.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 851130905 is about 29174.1478881560. The cubic root of 851130905 is about 947.6881570434.

The spelling of 851130905 in words is "eight hundred fifty-one million, one hundred thirty thousand, nine hundred five".