128775337 has 4 divisors (see below), whose sum is σ = 128802960. Its totient is φ = 128747716.

The previous prime is 128775329. The next prime is 128775349. The reversal of 128775337 is 733577821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128775337 - 2³ = 128775329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128775293 and 128775302.

It is not an unprimeable number, because it can be changed into a prime (128775307) 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, 4903 + ... + 16780.

It is an arithmetic number, because the mean of its divisors is an integer number (32200740).

Almost surely, 2^128775337 is an apocalyptic number.

It is an amenable number.

128775337 is a deficient number, since it is larger than the sum of its proper divisors (27623).

128775337 is an equidigital number, since it uses as much as digits as its factorization.

128775337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27622.

The product of its digits is 246960, while the sum is 43.

The square root of 128775337 is about 11347.9221446043. The cubic root of 128775337 is about 504.9839383187.

The spelling of 128775337 in words is "one hundred twenty-eight million, seven hundred seventy-five thousand, three hundred thirty-seven".