128125053 has 18 divisors (see below), whose sum is σ = 215285694. Its totient is φ = 73214064.

The previous prime is 128125051. The next prime is 128125061. The reversal of 128125053 is 350521821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 127644804 + 480249 = 11298^2 + 693^2 .

It is not a de Polignac number, because 128125053 - 2¹ = 128125051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128125051) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 144826 + ... + 145707.

Almost surely, 2^128125053 is an apocalyptic number.

It is an amenable number.

128125053 is a deficient number, since it is larger than the sum of its proper divisors (87160641).

128125053 is a wasteful number, since it uses less digits than its factorization.

128125053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290553 (or 290543 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 128125053 is about 11319.2337638199. The cubic root of 128125053 is about 504.1324883174.

Adding to 128125053 its reverse (350521821), we get a palindrome (478646874).

The spelling of 128125053 in words is "one hundred twenty-eight million, one hundred twenty-five thousand, fifty-three".