11071491 has 4 divisors (see below), whose sum is σ = 14761992. Its totient is φ = 7380992.

The previous prime is 11071451. The next prime is 11071493. The reversal of 11071491 is 19417011.

11071491 is digitally balanced in base 3, 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: 19417011 = 3 ⋅6472337.

It is a cyclic number.

It is not a de Polignac number, because 11071491 - 2⁷ = 11071363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11071493) 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, 1845246 + ... + 1845251.

It is an arithmetic number, because the mean of its divisors is an integer number (3690498).

Almost surely, 2^11071491 is an apocalyptic number.

11071491 is a deficient number, since it is larger than the sum of its proper divisors (3690501).

11071491 is an equidigital number, since it uses as much as digits as its factorization.

11071491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690500.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 11071491 is about 3327.3850092828. The cubic root of 11071491 is about 222.8787707361.

The spelling of 11071491 in words is "eleven million, seventy-one thousand, four hundred ninety-one".