11719157 has 2 divisors, whose sum is σ = 11719158. Its totient is φ = 11719156.

The previous prime is 11719139. The next prime is 11719163. The reversal of 11719157 is 75191711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7873636 + 3845521 = 2806^2 + 1961^2 .

It is a cyclic number.

It is not a de Polignac number, because 11719157 - 2⁸ = 11718901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11719957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5859578 + 5859579.

It is an arithmetic number, because the mean of its divisors is an integer number (5859579).

Almost surely, 2^11719157 is an apocalyptic number.

It is an amenable number.

11719157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11719157 is an equidigital number, since it uses as much as digits as its factorization.

11719157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2205, while the sum is 32.

The square root of 11719157 is about 3423.3254300461. The cubic root of 11719157 is about 227.1427036490.

The spelling of 11719157 in words is "eleven million, seven hundred nineteen thousand, one hundred fifty-seven".