189506361 has 64 divisors (see below), whose sum is σ = 320993280. Its totient is φ = 97827840.

The previous prime is 189506357. The next prime is 189506371. The reversal of 189506361 is 163605981.

It is not a de Polignac number, because 189506361 - 2² = 189506357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189506371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244771 + ... + 245543.

It is an arithmetic number, because the mean of its divisors is an integer number (5015520).

Almost surely, 2^189506361 is an apocalyptic number.

189506361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189506361 is a deficient number, since it is larger than the sum of its proper divisors (131486919).

189506361 is a wasteful number, since it uses less digits than its factorization.

189506361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 189506361 is about 13766.1309379215. The cubic root of 189506361 is about 574.3914024458.

The spelling of 189506361 in words is "one hundred eighty-nine million, five hundred six thousand, three hundred sixty-one".