189120129053 has 4 divisors (see below), whose sum is σ = 189736155840. Its totient is φ = 188504102268.

The previous prime is 189120128999. The next prime is 189120129067. The reversal of 189120129053 is 350921021981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350921021981 = 47 ⋅7466404723.

It is a cyclic number.

It is not a de Polignac number, because 189120129053 - 2⁸ = 189120128797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 189120129053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189120129553) 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 3 ways as a sum of consecutive naturals, for example, 308012933 + ... + 308013546.

It is an arithmetic number, because the mean of its divisors is an integer number (47434038960).

Almost surely, 2^189120129053 is an apocalyptic number.

It is an amenable number.

189120129053 is a deficient number, since it is larger than the sum of its proper divisors (616026787).

189120129053 is an equidigital number, since it uses as much as digits as its factorization.

189120129053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616026786.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 189120129053 in words is "one hundred eighty-nine billion, one hundred twenty million, one hundred twenty-nine thousand, fifty-three".