235128605 has 4 divisors (see below), whose sum is σ = 282154332. Its totient is φ = 188102880.

The previous prime is 235128589. The next prime is 235128613. The reversal of 235128605 is 506821532.

235128605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37613689 + 197514916 = 6133^2 + 14054^2 .

It is not a de Polignac number, because 235128605 - 2⁴ = 235128589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23512856 + ... + 23512865.

It is an arithmetic number, because the mean of its divisors is an integer number (70538583).

Almost surely, 2^235128605 is an apocalyptic number.

It is an amenable number.

235128605 is a deficient number, since it is larger than the sum of its proper divisors (47025727).

235128605 is an equidigital number, since it uses as much as digits as its factorization.

235128605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47025726.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 235128605 is about 15333.9037756209. The cubic root of 235128605 is about 617.2131292738.

The spelling of 235128605 in words is "two hundred thirty-five million, one hundred twenty-eight thousand, six hundred five".