812570051 has 2 divisors, whose sum is σ = 812570052. Its totient is φ = 812570050.

The previous prime is 812570027. The next prime is 812570107. The reversal of 812570051 is 150075218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812570051 - 2¹⁴ = 812553667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812569996 and 812570023.

It is not a weakly prime, because it can be changed into another prime (812570251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406285025 + 406285026.

It is an arithmetic number, because the mean of its divisors is an integer number (406285026).

Almost surely, 2^812570051 is an apocalyptic number.

812570051 is a deficient number, since it is larger than the sum of its proper divisors (1).

812570051 is an equidigital number, since it uses as much as digits as its factorization.

812570051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 812570051 is about 28505.6143768206. The cubic root of 812570051 is about 933.1546054736.

The spelling of 812570051 in words is "eight hundred twelve million, five hundred seventy thousand, fifty-one".