10791581 has 4 divisors (see below), whose sum is σ = 11042592. Its totient is φ = 10540572.

The previous prime is 10791559. The next prime is 10791587. The reversal of 10791581 is 18519701.

10791581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18519701 = 193 ⋅95957.

It is a cyclic number.

It is not a de Polignac number, because 10791581 - 2¹⁸ = 10529437 is a prime.

It is a super-2 number, since 2×10791581² = 232916440959122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10791587) 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, 125441 + ... + 125526.

It is an arithmetic number, because the mean of its divisors is an integer number (2760648).

Almost surely, 2^10791581 is an apocalyptic number.

It is an amenable number.

10791581 is a deficient number, since it is larger than the sum of its proper divisors (251011).

10791581 is an equidigital number, since it uses as much as digits as its factorization.

10791581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251010.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 10791581 is about 3285.0541852457. The cubic root of 10791581 is about 220.9844382073.

The spelling of 10791581 in words is "ten million, seven hundred ninety-one thousand, five hundred eighty-one".