189343469 has 4 divisors (see below), whose sum is σ = 216392544. Its totient is φ = 162294396.

The previous prime is 189343459. The next prime is 189343477. The reversal of 189343469 is 964343981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189343469 is a prime.

It is a super-2 number, since 2×189343469² = 71701898505907922, which 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 (189343459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13524527 + ... + 13524540.

It is an arithmetic number, because the mean of its divisors is an integer number (54098136).

Almost surely, 2^189343469 is an apocalyptic number.

It is an amenable number.

189343469 is a deficient number, since it is larger than the sum of its proper divisors (27049075).

189343469 is an equidigital number, since it uses as much as digits as its factorization.

189343469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27049074.

The product of its digits is 559872, while the sum is 47.

The square root of 189343469 is about 13760.2132614288. The cubic root of 189343469 is about 574.2267807334.

The spelling of 189343469 in words is "one hundred eighty-nine million, three hundred forty-three thousand, four hundred sixty-nine".