234575128215 has 12 divisors (see below), whose sum is σ = 406596888984. Its totient is φ = 125106735024.

The previous prime is 234575128199. The next prime is 234575128217. The reversal of 234575128215 is 512821575432.

234575128215 is a `hidden beast` number, since 2 + 3 + 4 + 57 + 512 + 82 + 1 + 5 = 666.

It is not a de Polignac number, because 234575128215 - 2⁴ = 234575128199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5212780627 = 234575128215 / (2 + 3 + 4 + 5 + 7 + 5 + 1 + 2 + 8 + 2 + 1 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234575128217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2606390269 + ... + 2606390358.

It is an arithmetic number, because the mean of its divisors is an integer number (33883074082).

Almost surely, 2^234575128215 is an apocalyptic number.

234575128215 is a deficient number, since it is larger than the sum of its proper divisors (172021760769).

234575128215 is a wasteful number, since it uses less digits than its factorization.

234575128215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212780638 (or 5212780635 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The spelling of 234575128215 in words is "two hundred thirty-four billion, five hundred seventy-five million, one hundred twenty-eight thousand, two hundred fifteen".