173813189 has 4 divisors (see below), whose sum is σ = 189614400. Its totient is φ = 158011980.

The previous prime is 173813141. The next prime is 173813201. The reversal of 173813189 is 981318371.

173813189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-173813189 is a prime.

It is a super-2 number, since 2×173813189² = 60422049340699442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173813489) 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, 7900589 + ... + 7900610.

It is an arithmetic number, because the mean of its divisors is an integer number (47403600).

Almost surely, 2^173813189 is an apocalyptic number.

It is an amenable number.

173813189 is a deficient number, since it is larger than the sum of its proper divisors (15801211).

173813189 is a wasteful number, since it uses less digits than its factorization.

173813189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801210.

The product of its digits is 36288, while the sum is 41.

The square root of 173813189 is about 13183.8230039697. The cubic root of 173813189 is about 558.0771519670.

The spelling of 173813189 in words is "one hundred seventy-three million, eight hundred thirteen thousand, one hundred eighty-nine".