851755147 has 8 divisors (see below), whose sum is σ = 854721536. Its totient is φ = 848795112.

The previous prime is 851755129. The next prime is 851755189. The reversal of 851755147 is 741557158.

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 851755147 - 2¹⁵ = 851722379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851750147) 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, 476818 + ... + 478600.

It is an arithmetic number, because the mean of its divisors is an integer number (106840192).

Almost surely, 2^851755147 is an apocalyptic number.

851755147 is a deficient number, since it is larger than the sum of its proper divisors (2966389).

851755147 is a wasteful number, since it uses less digits than its factorization.

851755147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177.

The product of its digits is 196000, while the sum is 43.

The square root of 851755147 is about 29184.8444744871. The cubic root of 851755147 is about 947.9197869754.

The spelling of 851755147 in words is "eight hundred fifty-one million, seven hundred fifty-five thousand, one hundred forty-seven".