12765919 has 2 divisors, whose sum is σ = 12765920. Its totient is φ = 12765918.

The previous prime is 12765901. The next prime is 12765941. The reversal of 12765919 is 91956721.

12765919 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12765919 - 2¹⁵ = 12733151 is a prime.

It is a super-2 number, since 2×12765919² = 325937375829122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12765959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382959 + 6382960.

It is an arithmetic number, because the mean of its divisors is an integer number (6382960).

Almost surely, 2^12765919 is an apocalyptic number.

12765919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12765919 is an equidigital number, since it uses as much as digits as its factorization.

12765919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 12765919 is about 3572.9426247842. The cubic root of 12765919 is about 233.7136231724.

The spelling of 12765919 in words is "twelve million, seven hundred sixty-five thousand, nine hundred nineteen".