12169539 has 6 divisors (see below), whose sum is σ = 17578236. Its totient is φ = 8113020.

The previous prime is 12169513. The next prime is 12169567. The reversal of 12169539 is 93596121.

12169539 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12169539 - 2¹² = 12165443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12169039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 676077 + ... + 676094.

It is an arithmetic number, because the mean of its divisors is an integer number (2929706).

Almost surely, 2^12169539 is an apocalyptic number.

12169539 is a deficient number, since it is larger than the sum of its proper divisors (5408697).

12169539 is a wasteful number, since it uses less digits than its factorization.

12169539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352177 (or 1352174 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 12169539 is about 3488.4866346311. The cubic root of 12169539 is about 230.0159976270.

The spelling of 12169539 in words is "twelve million, one hundred sixty-nine thousand, five hundred thirty-nine".