11661193 has 4 divisors (see below), whose sum is σ = 12274960. Its totient is φ = 11047428.

The previous prime is 11661163. The next prime is 11661197. The reversal of 11661193 is 39116611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11661193 - 2¹⁷ = 11530121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11661197) 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, 306855 + ... + 306892.

It is an arithmetic number, because the mean of its divisors is an integer number (3068740).

Almost surely, 2^11661193 is an apocalyptic number.

It is an amenable number.

11661193 is a deficient number, since it is larger than the sum of its proper divisors (613767).

11661193 is an equidigital number, since it uses as much as digits as its factorization.

11661193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613766.

The product of its digits is 972, while the sum is 28.

The square root of 11661193 is about 3414.8488985605. The cubic root of 11661193 is about 226.7675951430.

The spelling of 11661193 in words is "eleven million, six hundred sixty-one thousand, one hundred ninety-three".