11159421 has 32 divisors (see below), whose sum is σ = 18778368. Its totient is φ = 5736960.

The previous prime is 11159419. The next prime is 11159431. The reversal of 11159421 is 12495111.

It is a happy number.

It is not a de Polignac number, because 11159421 - 2¹ = 11159419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11159391 and 11159400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11159431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10695 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (586824).

Almost surely, 2^11159421 is an apocalyptic number.

It is an amenable number.

11159421 is a deficient number, since it is larger than the sum of its proper divisors (7618947).

11159421 is a wasteful number, since it uses less digits than its factorization.

11159421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 360, while the sum is 24.

The square root of 11159421 is about 3340.5719570157. The cubic root of 11159421 is about 223.4672514314.

The spelling of 11159421 in words is "eleven million, one hundred fifty-nine thousand, four hundred twenty-one".