11197813 has 8 divisors (see below), whose sum is σ = 12249216. Its totient is φ = 10152000.

The previous prime is 11197807. The next prime is 11197817. The reversal of 11197813 is 31879111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11197813 - 2⁹ = 11197301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11197817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3588 + ... + 5938.

It is an arithmetic number, because the mean of its divisors is an integer number (1531152).

Almost surely, 2^11197813 is an apocalyptic number.

It is an amenable number.

11197813 is a deficient number, since it is larger than the sum of its proper divisors (1051403).

11197813 is a wasteful number, since it uses less digits than its factorization.

11197813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795.

The product of its digits is 1512, while the sum is 31.

The square root of 11197813 is about 3346.3133445629. The cubic root of 11197813 is about 223.7232245355.

The spelling of 11197813 in words is "eleven million, one hundred ninety-seven thousand, eight hundred thirteen".