11717157 has 8 divisors (see below), whose sum is σ = 15837184. Its totient is φ = 7704288.

The previous prime is 11717137. The next prime is 11717159. The reversal of 11717157 is 75171711.

It is a happy number.

11717157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11717157 - 2¹⁶ = 11651621 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 (11717159) 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, 26533 + ... + 26970.

It is an arithmetic number, because the mean of its divisors is an integer number (1979648).

Almost surely, 2^11717157 is an apocalyptic number.

It is an amenable number.

11717157 is a deficient number, since it is larger than the sum of its proper divisors (4120027).

11717157 is an equidigital number, since it uses as much as digits as its factorization.

11717157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53579.

The product of its digits is 1715, while the sum is 30.

The square root of 11717157 is about 3423.0333039572. The cubic root of 11717157 is about 227.1297814666.

Adding to 11717157 its reverse (75171711), we get a palindrome (86888868).

The spelling of 11717157 in words is "eleven million, seven hundred seventeen thousand, one hundred fifty-seven".