10181881 has 2 divisors, whose sum is σ = 10181882. Its totient is φ = 10181880.

The previous prime is 10181879. The next prime is 10181887. The reversal of 10181881 is 18818101.

10181881 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 can be written as a sum of positive squares in only one way, i.e., 5363856 + 4818025 = 2316^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 10181881 - 2¹ = 10181879 is a prime.

It is a super-2 number, since 2×10181881² = 207341401396322, which contains 22 as substring.

Together with 10181879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10181887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090940 + 5090941.

It is an arithmetic number, because the mean of its divisors is an integer number (5090941).

Almost surely, 2^10181881 is an apocalyptic number.

It is an amenable number.

10181881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10181881 is an equidigital number, since it uses as much as digits as its factorization.

10181881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 28.

The square root of 10181881 is about 3190.9059841995. The cubic root of 10181881 is about 216.7417982704.

Adding to 10181881 its reverse (18818101), we get a palindrome (28999982).

The spelling of 10181881 in words is "ten million, one hundred eighty-one thousand, eight hundred eighty-one".