11572117 has 8 divisors (see below), whose sum is σ = 11911680. Its totient is φ = 11235840.

The previous prime is 11572079. The next prime is 11572129. The reversal of 11572117 is 71127511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11572117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11572091 and 11572100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572417) 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 7 ways as a sum of consecutive naturals, for example, 7509 + ... + 8917.

It is an arithmetic number, because the mean of its divisors is an integer number (1488960).

Almost surely, 2^11572117 is an apocalyptic number.

It is an amenable number.

11572117 is a deficient number, since it is larger than the sum of its proper divisors (339563).

11572117 is a wasteful number, since it uses less digits than its factorization.

11572117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its digits is 490, while the sum is 25.

The square root of 11572117 is about 3401.7814450667. The cubic root of 11572117 is about 226.1887177717.

Adding to 11572117 its reverse (71127511), we get a palindrome (82699628).

The spelling of 11572117 in words is "eleven million, five hundred seventy-two thousand, one hundred seventeen".