12109537 has 8 divisors (see below), whose sum is σ = 13427712. Its totient is φ = 10827600.

The previous prime is 12109507. The next prime is 12109543. The reversal of 12109537 is 73590121.

12109537 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12109537 - 2¹¹ = 12107489 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (12109507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8353 + ... + 9694.

It is an arithmetic number, because the mean of its divisors is an integer number (1678464).

Almost surely, 2^12109537 is an apocalyptic number.

It is an amenable number.

12109537 is a deficient number, since it is larger than the sum of its proper divisors (1318175).

12109537 is a wasteful number, since it uses less digits than its factorization.

12109537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12109537 is about 3479.8760035381. The cubic root of 12109537 is about 229.6373427770.

Adding to 12109537 its reverse (73590121), we get a palindrome (85699658).

The spelling of 12109537 in words is "twelve million, one hundred nine thousand, five hundred thirty-seven".