10040191 has 8 divisors (see below), whose sum is σ = 11500704. Its totient is φ = 8586240.

The previous prime is 10040171. The next prime is 10040221. The reversal of 10040191 is 19104001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10040191 - 2¹⁵ = 10007423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040111) 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, 2271 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (1437588).

Almost surely, 2^10040191 is an apocalyptic number.

10040191 is a deficient number, since it is larger than the sum of its proper divisors (1460513).

10040191 is an equidigital number, since it uses as much as digits as its factorization.

10040191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 10040191 is about 3168.6260429404. The cubic root of 10040191 is about 215.7317128026.

Adding to 10040191 its reverse (19104001), we get a palindrome (29144192).

The spelling of 10040191 in words is "ten million, forty thousand, one hundred ninety-one".