8120251 has 2 divisors, whose sum is σ = 8120252. Its totient is φ = 8120250.

The previous prime is 8120243. The next prime is 8120263. The reversal of 8120251 is 1520218.

8120251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8120251 - 2³ = 8120243 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8120051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060125 + 4060126.

It is an arithmetic number, because the mean of its divisors is an integer number (4060126).

Almost surely, 2^8120251 is an apocalyptic number.

8120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120251 is an equidigital number, since it uses as much as digits as its factorization.

8120251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 8120251 is about 2849.6054112807. The cubic root of 8120251 is about 200.9971122412.

Adding to 8120251 its reverse (1520218), we get a palindrome (9640469).

The spelling of 8120251 in words is "eight million, one hundred twenty thousand, two hundred fifty-one".