851804151 has 16 divisors (see below), whose sum is σ = 1269209088. Its totient is φ = 503652800.

The previous prime is 851804119. The next prime is 851804167. The reversal of 851804151 is 151408158.

It is a cyclic number.

It is not a de Polignac number, because 851804151 - 2⁵ = 851804119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851804101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313431 + ... + 316136.

It is an arithmetic number, because the mean of its divisors is an integer number (79325568).

Almost surely, 2^851804151 is an apocalyptic number.

851804151 is a deficient number, since it is larger than the sum of its proper divisors (417404937).

851804151 is a wasteful number, since it uses less digits than its factorization.

851804151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629622.

The product of its (nonzero) digits is 6400, while the sum is 33.

The square root of 851804151 is about 29185.6840077460. The cubic root of 851804151 is about 947.9379655058.

The spelling of 851804151 in words is "eight hundred fifty-one million, eight hundred four thousand, one hundred fifty-one".