10308081 has 12 divisors (see below), whose sum is σ = 15988272. Its totient is φ = 5890248.

The previous prime is 10308061. The next prime is 10308121. The reversal of 10308081 is 18080301.

It is a happy number.

It is not a de Polignac number, because 10308081 - 2¹¹ = 10306033 is a prime.

It is a super-2 number, since 2×10308081² = 212513067805122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10308031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34915 + ... + 35208.

It is an arithmetic number, because the mean of its divisors is an integer number (1332356).

Almost surely, 2^10308081 is an apocalyptic number.

It is an amenable number.

10308081 is a deficient number, since it is larger than the sum of its proper divisors (5680191).

10308081 is an equidigital number, since it uses as much as digits as its factorization.

10308081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70140 (or 70133 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 10308081 is about 3210.6200335761. The cubic root of 10308081 is about 217.6335974043.

Adding to 10308081 its reverse (18080301), we get a palindrome (28388382).

The spelling of 10308081 in words is "ten million, three hundred eight thousand, eighty-one".