810867151 has 4 divisors (see below), whose sum is σ = 810955152. Its totient is φ = 810779152.

The previous prime is 810867133. The next prime is 810867157. The reversal of 810867151 is 151768018.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 810867151 - 2⁵ = 810867119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 810867151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810867157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28315 + ... + 49228.

It is an arithmetic number, because the mean of its divisors is an integer number (202738788).

Almost surely, 2^810867151 is an apocalyptic number.

810867151 is a deficient number, since it is larger than the sum of its proper divisors (88001).

810867151 is a wasteful number, since it uses less digits than its factorization.

810867151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88000.

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 810867151 is about 28475.7291565993. The cubic root of 810867151 is about 932.5022800367.

The spelling of 810867151 in words is "eight hundred ten million, eight hundred sixty-seven thousand, one hundred fifty-one".