265736729 has 2 divisors, whose sum is σ = 265736730. Its totient is φ = 265736728.

The previous prime is 265736699. The next prime is 265736759. The reversal of 265736729 is 927637562.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (265736699) and next prime (265736759).

It can be written as a sum of positive squares in only one way, i.e., 232501504 + 33235225 = 15248^2 + 5765^2 .

It is a cyclic number.

It is not a de Polignac number, because 265736729 - 2¹⁶ = 265671193 is a prime.

It is not a weakly prime, because it can be changed into another prime (265736759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132868364 + 132868365.

It is an arithmetic number, because the mean of its divisors is an integer number (132868365).

Almost surely, 2^265736729 is an apocalyptic number.

It is an amenable number.

265736729 is a deficient number, since it is larger than the sum of its proper divisors (1).

265736729 is an equidigital number, since it uses as much as digits as its factorization.

265736729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The square root of 265736729 is about 16301.4333418875. The cubic root of 265736729 is about 642.9105141979.

The spelling of 265736729 in words is "two hundred sixty-five million, seven hundred thirty-six thousand, seven hundred twenty-nine".