269023661 has 2 divisors, whose sum is σ = 269023662. Its totient is φ = 269023660.

The previous prime is 269023649. The next prime is 269023681. The reversal of 269023661 is 166320962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219602761 + 49420900 = 14819^2 + 7030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269023661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (269023681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134511830 + 134511831.

It is an arithmetic number, because the mean of its divisors is an integer number (134511831).

Almost surely, 2^269023661 is an apocalyptic number.

It is an amenable number.

269023661 is a deficient number, since it is larger than the sum of its proper divisors (1).

269023661 is an equidigital number, since it uses as much as digits as its factorization.

269023661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 269023661 is about 16401.9407693114. The cubic root of 269023661 is about 645.5504073300.

The spelling of 269023661 in words is "two hundred sixty-nine million, twenty-three thousand, six hundred sixty-one".