189550911 has 8 divisors (see below), whose sum is σ = 275710464. Its totient is φ = 114879320.

The previous prime is 189550903. The next prime is 189550919. The reversal of 189550911 is 119055981.

It is an interprime number because it is at equal distance from previous prime (189550903) and next prime (189550919).

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

It is a cyclic number.

It is not a de Polignac number, because 189550911 - 2³ = 189550903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189550911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189550919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871951 + ... + 2872016.

It is an arithmetic number, because the mean of its divisors is an integer number (34463808).

Almost surely, 2^189550911 is an apocalyptic number.

189550911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

189550911 is a deficient number, since it is larger than the sum of its proper divisors (86159553).

189550911 is a wasteful number, since it uses less digits than its factorization.

189550911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743981.

The product of its (nonzero) digits is 16200, while the sum is 39.

The square root of 189550911 is about 13767.7489445443. The cubic root of 189550911 is about 574.4364090829.

The spelling of 189550911 in words is "one hundred eighty-nine million, five hundred fifty thousand, nine hundred eleven".