8081251 has 4 divisors (see below), whose sum is σ = 8506600. Its totient is φ = 7655904.

The previous prime is 8081237. The next prime is 8081263. The reversal of 8081251 is 1521808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8081251 - 2⁷ = 8081123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8081221) 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, 212646 + ... + 212683.

It is an arithmetic number, because the mean of its divisors is an integer number (2126650).

Almost surely, 2^8081251 is an apocalyptic number.

8081251 is a deficient number, since it is larger than the sum of its proper divisors (425349).

8081251 is a wasteful number, since it uses less digits than its factorization.

8081251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425348.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8081251 is about 2842.7541223257. The cubic root of 8081251 is about 200.6748122481.

The spelling of 8081251 in words is "eight million, eighty-one thousand, two hundred fifty-one".