189149322 has 16 divisors (see below), whose sum is σ = 378677952. Its totient is φ = 62986560.

The previous prime is 189149287. The next prime is 189149329. The reversal of 189149322 is 223941981.

It is not an unprimeable number, because it can be changed into a prime (189149329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9103 + ... + 21474.

It is an arithmetic number, because the mean of its divisors is an integer number (23667372).

Almost surely, 2^189149322 is an apocalyptic number.

189149322 is an abundant number, since it is smaller than the sum of its proper divisors (189528630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189149322 is a wasteful number, since it uses less digits than its factorization.

189149322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31613.

The product of its digits is 31104, while the sum is 39.

The square root of 189149322 is about 13753.1568012584. The cubic root of 189149322 is about 574.0304487565.

Adding to 189149322 its product of digits (31104), we get a triangular number (189180426 = T₁₉₄₅₁).

The spelling of 189149322 in words is "one hundred eighty-nine million, one hundred forty-nine thousand, three hundred twenty-two".