269128657 has 8 divisors (see below), whose sum is σ = 309170816. Its totient is φ = 229485312.

The previous prime is 269128631. The next prime is 269128669. The reversal of 269128657 is 756821962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 269128657 - 2²³ = 260740049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (269128697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98253 + ... + 100954.

It is an arithmetic number, because the mean of its divisors is an integer number (38646352).

Almost surely, 2^269128657 is an apocalyptic number.

It is an amenable number.

269128657 is a deficient number, since it is larger than the sum of its proper divisors (40042159).

269128657 is a wasteful number, since it uses less digits than its factorization.

269128657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199407.

The product of its digits is 362880, while the sum is 46.

The square root of 269128657 is about 16405.1411758631. The cubic root of 269128657 is about 645.6343793672.

The spelling of 269128657 in words is "two hundred sixty-nine million, one hundred twenty-eight thousand, six hundred fifty-seven".