11141897 has 4 divisors (see below), whose sum is σ = 11998980. Its totient is φ = 10284816.

The previous prime is 11141891. The next prime is 11141929. The reversal of 11141897 is 79814111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79814111 = 13 ⋅6139547.

It can be written as a sum of positive squares in 2 ways, for example, as 7284601 + 3857296 = 2699^2 + 1964^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141897 - 2⁴ = 11141881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11141891) 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, 428522 + ... + 428547.

It is an arithmetic number, because the mean of its divisors is an integer number (2999745).

Almost surely, 2^11141897 is an apocalyptic number.

It is an amenable number.

11141897 is a deficient number, since it is larger than the sum of its proper divisors (857083).

11141897 is an equidigital number, since it uses as much as digits as its factorization.

11141897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857082.

The product of its digits is 2016, while the sum is 32.

The square root of 11141897 is about 3337.9480223634. The cubic root of 11141897 is about 223.3502175300.

The spelling of 11141897 in words is "eleven million, one hundred forty-one thousand, eight hundred ninety-seven".