12050865 has 12 divisors (see below), whose sum is σ = 20888244. Its totient is φ = 6427104.

The previous prime is 12050839. The next prime is 12050869. The reversal of 12050865 is 56805021.

It can be written as a sum of positive squares in 2 ways, for example, as 3283344 + 8767521 = 1812^2 + 2961^2 .

It is not a de Polignac number, because 12050865 - 2⁵ = 12050833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12050869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133854 + ... + 133943.

It is an arithmetic number, because the mean of its divisors is an integer number (1740687).

Almost surely, 2^12050865 is an apocalyptic number.

12050865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12050865 is a deficient number, since it is larger than the sum of its proper divisors (8837379).

12050865 is a wasteful number, since it uses less digits than its factorization.

12050865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267808 (or 267805 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 12050865 is about 3471.4355820035. The cubic root of 12050865 is about 229.2658697040.

Adding to 12050865 its reverse (56805021), we get a palindrome (68855886).

The spelling of 12050865 in words is "twelve million, fifty thousand, eight hundred sixty-five".