810151 has 2 divisors, whose sum is σ = 810152. Its totient is φ = 810150.

The previous prime is 810149. The next prime is 810191. The reversal of 810151 is 151018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 810151 - 2¹ = 810149 is a prime.

Together with 810149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405075 + 405076.

It is an arithmetic number, because the mean of its divisors is an integer number (405076).

2⁸¹⁰¹⁵¹ is an apocalyptic number.

810151 is a deficient number, since it is larger than the sum of its proper divisors (1).

810151 is an equidigital number, since it uses as much as digits as its factorization.

810151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 810151 is about 900.0838849796. The cubic root of 810151 is about 93.2227673139. Note that the first 3 decimals are identical.

Adding to 810151 its reverse (151018), we get a palindrome (961169).

It can be divided in two parts, 810 and 151, that added together give a square (961 = 31²).

The spelling of 810151 in words is "eight hundred ten thousand, one hundred fifty-one".