128525234 has 8 divisors (see below), whose sum is σ = 202934640. Its totient is φ = 60880356.

The previous prime is 128525233. The next prime is 128525239. The reversal of 128525234 is 432525821.

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

It is a self number, because there is not a number n which added to its sum of digits gives 128525234.

It is not an unprimeable number, because it can be changed into a prime (128525233) 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, 1691084 + ... + 1691159.

It is an arithmetic number, because the mean of its divisors is an integer number (25366830).

Almost surely, 2^128525234 is an apocalyptic number.

128525234 is a deficient number, since it is larger than the sum of its proper divisors (74409406).

128525234 is a wasteful number, since it uses less digits than its factorization.

128525234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382264.

The product of its digits is 19200, while the sum is 32.

The square root of 128525234 is about 11336.8970181439. The cubic root of 128525234 is about 504.6568056729.

The spelling of 128525234 in words is "one hundred twenty-eight million, five hundred twenty-five thousand, two hundred thirty-four".