11159971 has 2 divisors, whose sum is σ = 11159972. Its totient is φ = 11159970.

The previous prime is 11159963. The next prime is 11160013. The reversal of 11159971 is 17995111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11159971 - 2³ = 11159963 is a prime.

It is not a weakly prime, because it can be changed into another prime (11159921) 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 as a sum of consecutive naturals, namely, 5579985 + 5579986.

It is an arithmetic number, because the mean of its divisors is an integer number (5579986).

Almost surely, 2^11159971 is an apocalyptic number.

11159971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11159971 is an equidigital number, since it uses as much as digits as its factorization.

11159971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 34.

The square root of 11159971 is about 3340.6542772337. The cubic root of 11159971 is about 223.4709226186.

The spelling of 11159971 in words is "eleven million, one hundred fifty-nine thousand, nine hundred seventy-one".