812051 has 2 divisors, whose sum is σ = 812052. Its totient is φ = 812050.

The previous prime is 812047. The next prime is 812057. The reversal of 812051 is 150218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812051 - 2² = 812047 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (812057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406025 + 406026.

It is an arithmetic number, because the mean of its divisors is an integer number (406026).

2⁸¹²⁰⁵¹ is an apocalyptic number.

812051 is a deficient number, since it is larger than the sum of its proper divisors (1).

812051 is an equidigital number, since it uses as much as digits as its factorization.

812051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 812051 is about 901.1387240597. The cubic root of 812051 is about 93.2955870608.

Adding to 812051 its reverse (150218), we get a palindrome (962269).

The spelling of 812051 in words is "eight hundred twelve thousand, fifty-one".