189153673 has 4 divisors (see below), whose sum is σ = 190643200. Its totient is φ = 187664148.

The previous prime is 189153667. The next prime is 189153677. The reversal of 189153673 is 376351981.

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 not a de Polignac number, because 189153673 - 2⁵ = 189153641 is a prime.

It is a super-2 number, since 2×189153673² = 71558224018781858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189153677) 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 3 ways as a sum of consecutive naturals, for example, 744573 + ... + 744826.

It is an arithmetic number, because the mean of its divisors is an integer number (47660800).

Almost surely, 2^189153673 is an apocalyptic number.

It is an amenable number.

189153673 is a deficient number, since it is larger than the sum of its proper divisors (1489527).

189153673 is a wasteful number, since it uses less digits than its factorization.

189153673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489526.

The product of its digits is 136080, while the sum is 43.

The square root of 189153673 is about 13753.3149822143. The cubic root of 189153673 is about 574.0348501950.

The spelling of 189153673 in words is "one hundred eighty-nine million, one hundred fifty-three thousand, six hundred seventy-three".