11520197 has 8 divisors (see below), whose sum is σ = 12437880. Its totient is φ = 10607040.

The previous prime is 11520191. The next prime is 11520227. The reversal of 11520197 is 79102511.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 11519236 = 31^2 + 3394^2 .

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 11520197 - 2¹² = 11516101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520191) 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 7 ways as a sum of consecutive naturals, for example, 5747 + ... + 7487.

It is an arithmetic number, because the mean of its divisors is an integer number (1554735).

Almost surely, 2^11520197 is an apocalyptic number.

It is an amenable number.

11520197 is a deficient number, since it is larger than the sum of its proper divisors (917683).

11520197 is a wasteful number, since it uses less digits than its factorization.

11520197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 11520197 is about 3394.1415704122. The cubic root of 11520197 is about 225.8499343137.

The spelling of 11520197 in words is "eleven million, five hundred twenty thousand, one hundred ninety-seven".