265423387 has 2 divisors, whose sum is σ = 265423388. Its totient is φ = 265423386.

The previous prime is 265423373. The next prime is 265423447. The reversal of 265423387 is 783324562.

265423387 is digitally balanced in base 2, 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 265423387 - 2⁷ = 265423259 is a prime.

It is not a weakly prime, because it can be changed into another prime (265423337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132711693 + 132711694.

It is an arithmetic number, because the mean of its divisors is an integer number (132711694).

Almost surely, 2^265423387 is an apocalyptic number.

265423387 is a deficient number, since it is larger than the sum of its proper divisors (1).

265423387 is an equidigital number, since it uses as much as digits as its factorization.

265423387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 265423387 is about 16291.8196344055. The cubic root of 265423387 is about 642.6577200146.

It can be divided in two parts, 26542 and 3387, that added together give a square (29929 = 173²).

The spelling of 265423387 in words is "two hundred sixty-five million, four hundred twenty-three thousand, three hundred eighty-seven".