10091138 has 8 divisors (see below), whose sum is σ = 15362832. Its totient is φ = 4970196.

The previous prime is 10091129. The next prime is 10091141. The reversal of 10091138 is 83119001.

10091138 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 a super-2 number, since 2×10091138² = 203662132270088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37520 + ... + 37787.

It is an arithmetic number, because the mean of its divisors is an integer number (1920354).

Almost surely, 2^10091138 is an apocalyptic number.

10091138 is a deficient number, since it is larger than the sum of its proper divisors (5271694).

10091138 is an equidigital number, since it uses as much as digits as its factorization.

10091138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75376.

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

The square root of 10091138 is about 3176.6551591257. The cubic root of 10091138 is about 216.0959935696.

The spelling of 10091138 in words is "ten million, ninety-one thousand, one hundred thirty-eight".