10391081 has 8 divisors (see below), whose sum is σ = 11205600. Its totient is φ = 9603360.

The previous prime is 10391071. The next prime is 10391093. The reversal of 10391081 is 18019301.

10391081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10391081 - 2¹⁰ = 10390057 is a prime.

It is a super-2 number, since 2×10391081² = 215949128697122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10391041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5891 + ... + 7448.

It is an arithmetic number, because the mean of its divisors is an integer number (1400700).

Almost surely, 2^10391081 is an apocalyptic number.

It is an amenable number.

10391081 is a deficient number, since it is larger than the sum of its proper divisors (814519).

10391081 is a wasteful number, since it uses less digits than its factorization.

10391081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13399.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 10391081 is about 3223.5199704671. The cubic root of 10391081 is about 218.2161604770.

The spelling of 10391081 in words is "ten million, three hundred ninety-one thousand, eighty-one".