189541105127 has 16 divisors (see below), whose sum is σ = 212380272672. Its totient is φ = 167637496320.

The previous prime is 189541105123. The next prime is 189541105129. The reversal of 189541105127 is 721501145981.

It is a cyclic number.

It is not a de Polignac number, because 189541105127 - 2² = 189541105123 is a prime.

It is a super-2 number, since 2×189541105127² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189541105121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8223323 + ... + 8246339.

It is an arithmetic number, because the mean of its divisors is an integer number (13273767042).

Almost surely, 2^189541105127 is an apocalyptic number.

189541105127 is a deficient number, since it is larger than the sum of its proper divisors (22839167545).

189541105127 is a wasteful number, since it uses less digits than its factorization.

189541105127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43298.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 189541105127 in words is "one hundred eighty-nine billion, five hundred forty-one million, one hundred five thousand, one hundred twenty-seven".