10391138 has 16 divisors (see below), whose sum is σ = 16938240. Its totient is φ = 4762800.

The previous prime is 10391137. The next prime is 10391177. The reversal of 10391138 is 83119301.

10391138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10391137) 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, 3233 + ... + 5588.

It is an arithmetic number, because the mean of its divisors is an integer number (1058640).

Almost surely, 2^10391138 is an apocalyptic number.

10391138 is a deficient number, since it is larger than the sum of its proper divisors (6547102).

10391138 is a wasteful number, since it uses less digits than its factorization.

10391138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 10391138 is about 3223.5288117217. The cubic root of 10391138 is about 218.2165594825.

The spelling of 10391138 in words is "ten million, three hundred ninety-one thousand, one hundred thirty-eight".