856158051 has 8 divisors (see below), whose sum is σ = 1304621824. Its totient is φ = 489233160.

The previous prime is 856158019. The next prime is 856158053. The reversal of 856158051 is 150851658.

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

It is not a de Polignac number, because 856158051 - 2⁵ = 856158019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856158053) 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, 20384695 + ... + 20384736.

It is an arithmetic number, because the mean of its divisors is an integer number (163077728).

Almost surely, 2^856158051 is an apocalyptic number.

856158051 is a deficient number, since it is larger than the sum of its proper divisors (448463773).

856158051 is a wasteful number, since it uses less digits than its factorization.

856158051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40769441.

The product of its (nonzero) digits is 48000, while the sum is 39.

The square root of 856158051 is about 29260.1785879717. The cubic root of 856158051 is about 949.5503138581.

The spelling of 856158051 in words is "eight hundred fifty-six million, one hundred fifty-eight thousand, fifty-one".