12072765 has 16 divisors (see below), whose sum is σ = 19551168. Its totient is φ = 6360576.

The previous prime is 12072763. The next prime is 12072773. The reversal of 12072765 is 56727021.

It is not a de Polignac number, because 12072765 - 2¹ = 12072763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3604 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (1221948).

Almost surely, 2^12072765 is an apocalyptic number.

12072765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12072765 is a deficient number, since it is larger than the sum of its proper divisors (7478403).

12072765 is an equidigital number, since it uses as much as digits as its factorization.

12072765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9788.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 12072765 is about 3474.5884648401. The cubic root of 12072765 is about 229.4046670465.

Adding to 12072765 its reverse (56727021), we get a palindrome (68799786).

The spelling of 12072765 in words is "twelve million, seventy-two thousand, seven hundred sixty-five".