8051881 has 2 divisors, whose sum is σ = 8051882. Its totient is φ = 8051880.

The previous prime is 8051851. The next prime is 8051893. The reversal of 8051881 is 1881508.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 434281 = 2760^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 8051881 - 2⁹ = 8051369 is a prime.

It is a super-2 number, since 2×8051881² = 129665575276322, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8051831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4025940 + 4025941.

It is an arithmetic number, because the mean of its divisors is an integer number (4025941).

Almost surely, 2^8051881 is an apocalyptic number.

It is an amenable number.

8051881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8051881 is an equidigital number, since it uses as much as digits as its factorization.

8051881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 8051881 is about 2837.5836551545. The cubic root of 8051881 is about 200.4314104228.

The spelling of 8051881 in words is "eight million, fifty-one thousand, eight hundred eighty-one".