12010491 has 8 divisors (see below), whose sum is σ = 17793360. Its totient is φ = 8006976.

The previous prime is 12010477. The next prime is 12010501. The reversal of 12010491 is 19401021.

12010491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12010491 is a prime.

It is a super-2 number, since 2×12010491² = 288503788122162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12010091) 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, 222390 + ... + 222443.

It is an arithmetic number, because the mean of its divisors is an integer number (2224170).

Almost surely, 2^12010491 is an apocalyptic number.

12010491 is a deficient number, since it is larger than the sum of its proper divisors (5782869).

12010491 is an equidigital number, since it uses as much as digits as its factorization.

12010491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444842 (or 444836 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12010491 is about 3465.6155297436. The cubic root of 12010491 is about 229.0095468392.

The spelling of 12010491 in words is "twelve million, ten thousand, four hundred ninety-one".