11148691 has 4 divisors (see below), whose sum is σ = 11173032. Its totient is φ = 11124352.

The previous prime is 11148689. The next prime is 11148701. The reversal of 11148691 is 19684111.

11148691 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.

It is a cyclic number.

It is not a de Polignac number, because 11148691 - 2¹ = 11148689 is a prime.

It is a super-2 number, since 2×11148691² = 248586622026962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11148661) 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, 11470 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (2793258).

Almost surely, 2^11148691 is an apocalyptic number.

11148691 is a deficient number, since it is larger than the sum of its proper divisors (24341).

11148691 is an equidigital number, since it uses as much as digits as its factorization.

11148691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24340.

The product of its digits is 1728, while the sum is 31.

The square root of 11148691 is about 3338.9655583728. The cubic root of 11148691 is about 223.3956057630.

The spelling of 11148691 in words is "eleven million, one hundred forty-eight thousand, six hundred ninety-one".