193115128 has 16 divisors (see below), whose sum is σ = 363331080. Its totient is φ = 96226848.

The previous prime is 193115113. The next prime is 193115129. The reversal of 193115128 is 821511391.

It is a self number, because there is not a number n which added to its sum of digits gives 193115128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193115129) 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, 38850 + ... + 43537.

Almost surely, 2^193115128 is an apocalyptic number.

It is an amenable number.

193115128 is a deficient number, since it is larger than the sum of its proper divisors (170215952).

193115128 is a wasteful number, since it uses less digits than its factorization.

193115128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82686 (or 82682 counting only the distinct ones).

The product of its digits is 2160, while the sum is 31.

The square root of 193115128 is about 13896.5869190964. The cubic root of 193115128 is about 578.0145428827.

The spelling of 193115128 in words is "one hundred ninety-three million, one hundred fifteen thousand, one hundred twenty-eight".