10243091 has 4 divisors (see below), whose sum is σ = 10249512. Its totient is φ = 10236672.

The previous prime is 10243087. The next prime is 10243097. The reversal of 10243091 is 19034201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19034201 = 47 ⋅404983.

It is a cyclic number.

It is not a de Polignac number, because 10243091 - 2² = 10243087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10243097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (2562378).

Almost surely, 2^10243091 is an apocalyptic number.

10243091 is a deficient number, since it is larger than the sum of its proper divisors (6421).

10243091 is an equidigital number, since it uses as much as digits as its factorization.

10243091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10243091 is about 3200.4829323088. The cubic root of 10243091 is about 217.1752567775.

Adding to 10243091 its reverse (19034201), we get a palindrome (29277292).

The spelling of 10243091 in words is "ten million, two hundred forty-three thousand, ninety-one".