11197057 has 4 divisors (see below), whose sum is σ = 11296260. Its totient is φ = 11097856.

The previous prime is 11197037. The next prime is 11197063. The reversal of 11197057 is 75079111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75079111 = 53 ⋅1416587.

It can be written as a sum of positive squares in 2 ways, for example, as 4036081 + 7160976 = 2009^2 + 2676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11197057 is a prime.

It is a super-2 number, since 2×11197057² = 250748170922498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11197037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49432 + ... + 49657.

It is an arithmetic number, because the mean of its divisors is an integer number (2824065).

Almost surely, 2^11197057 is an apocalyptic number.

It is an amenable number.

11197057 is a deficient number, since it is larger than the sum of its proper divisors (99203).

11197057 is an equidigital number, since it uses as much as digits as its factorization.

11197057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99202.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 11197057 is about 3346.2003825234. The cubic root of 11197057 is about 223.7181896665.

The spelling of 11197057 in words is "eleven million, one hundred ninety-seven thousand, fifty-seven".