11198961 has 24 divisors (see below), whose sum is σ = 17264000. Its totient is φ = 6975072.

The previous prime is 11198951. The next prime is 11198969. The reversal of 11198961 is 16989111.

It is not a de Polignac number, because 11198961 - 2⁹ = 11198449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11198969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13095 + ... + 13923.

Almost surely, 2^11198961 is an apocalyptic number.

It is an amenable number.

11198961 is a deficient number, since it is larger than the sum of its proper divisors (6065039).

11198961 is a wasteful number, since it uses less digits than its factorization.

11198961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 930 counting only the distinct ones).

The product of its digits is 3888, while the sum is 36.

The square root of 11198961 is about 3346.4848722204. The cubic root of 11198961 is about 223.7308696439.

The spelling of 11198961 in words is "eleven million, one hundred ninety-eight thousand, nine hundred sixty-one".