269135689 has 4 divisors (see below), whose sum is σ = 278416260. Its totient is φ = 259855120.

The previous prime is 269135663. The next prime is 269135723. The reversal of 269135689 is 986531962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139358025 + 129777664 = 11805^2 + 11392^2 .

It is a cyclic number.

It is not a de Polignac number, because 269135689 - 2¹⁹ = 268611401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (269135089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640242 + ... + 4640299.

It is an arithmetic number, because the mean of its divisors is an integer number (69604065).

Almost surely, 2^269135689 is an apocalyptic number.

269135689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

269135689 is a deficient number, since it is larger than the sum of its proper divisors (9280571).

269135689 is an equidigital number, since it uses as much as digits as its factorization.

269135689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280570.

The product of its digits is 699840, while the sum is 49.

The square root of 269135689 is about 16405.3554975197. The cubic root of 269135689 is about 645.6400025284.

The spelling of 269135689 in words is "two hundred sixty-nine million, one hundred thirty-five thousand, six hundred eighty-nine".