10861091 has 4 divisors (see below), whose sum is σ = 11154672. Its totient is φ = 10567512.

The previous prime is 10861073. The next prime is 10861093. The reversal of 10861091 is 19016801.

10861091 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 an emirpimes, since its reverse is a distinct semiprime: 19016801 = 79 ⋅240719.

It is a cyclic number.

It is not a de Polignac number, because 10861091 - 2¹⁰ = 10860067 is a prime.

It is a super-3 number, since 3×10861091³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10861091.

It is not an unprimeable number, because it can be changed into a prime (10861093) 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, 146735 + ... + 146808.

It is an arithmetic number, because the mean of its divisors is an integer number (2788668).

Almost surely, 2^10861091 is an apocalyptic number.

10861091 is a deficient number, since it is larger than the sum of its proper divisors (293581).

10861091 is an equidigital number, since it uses as much as digits as its factorization.

10861091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293580.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 10861091 is about 3295.6169376916. The cubic root of 10861091 is about 221.4578864711.

Adding to 10861091 its reverse (19016801), we get a palindrome (29877892).

The spelling of 10861091 in words is "ten million, eight hundred sixty-one thousand, ninety-one".