235128147 has 8 divisors (see below), whose sum is σ = 313659840. Its totient is φ = 156674280.

The previous prime is 235128119. The next prime is 235128191. The reversal of 235128147 is 741821532.

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

It is not a de Polignac number, because 235128147 - 2⁶ = 235128083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (235128197) 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 in 7 ways as a sum of consecutive naturals, for example, 11997 + ... + 24782.

It is an arithmetic number, because the mean of its divisors is an integer number (39207480).

Almost surely, 2^235128147 is an apocalyptic number.

235128147 is a deficient number, since it is larger than the sum of its proper divisors (78531693).

235128147 is a wasteful number, since it uses less digits than its factorization.

235128147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38913.

The product of its digits is 13440, while the sum is 33.

The square root of 235128147 is about 15333.8888413866. Note that the first 4 decimals coincide. The cubic root of 235128147 is about 617.2127285232.

Adding to 235128147 its reverse (741821532), we get a palindrome (976949679).

The spelling of 235128147 in words is "two hundred thirty-five million, one hundred twenty-eight thousand, one hundred forty-seven".