189601243 has 8 divisors (see below), whose sum is σ = 208531008. Its totient is φ = 171292224.

The previous prime is 189601241. The next prime is 189601273. The reversal of 189601243 is 342106981.

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 189601243 - 2¹ = 189601241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189601199 and 189601208.

It is not an unprimeable number, because it can be changed into a prime (189601241) 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, 154546 + ... + 155767.

It is an arithmetic number, because the mean of its divisors is an integer number (26066376).

Almost surely, 2^189601243 is an apocalyptic number.

189601243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

189601243 is a deficient number, since it is larger than the sum of its proper divisors (18929765).

189601243 is a wasteful number, since it uses less digits than its factorization.

189601243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310373.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 189601243 is about 13769.5767182583. The cubic root of 189601243 is about 574.4872485021.

The spelling of 189601243 in words is "one hundred eighty-nine million, six hundred one thousand, two hundred forty-three".