173465813 has 4 divisors (see below), whose sum is σ = 173494080. Its totient is φ = 173437548.

The previous prime is 173465797. The next prime is 173465819. The reversal of 173465813 is 318564371.

173465813 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, and also an emirpimes, since its reverse is a distinct semiprime: 318564371 = 823 ⋅387077.

It is a cyclic number.

It is not a de Polignac number, because 173465813 - 2⁴ = 173465797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173465819) 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, 623 + ... + 18636.

It is an arithmetic number, because the mean of its divisors is an integer number (43373520).

Almost surely, 2^173465813 is an apocalyptic number.

It is an amenable number.

173465813 is a deficient number, since it is larger than the sum of its proper divisors (28267).

173465813 is an equidigital number, since it uses as much as digits as its factorization.

173465813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28266.

The product of its digits is 60480, while the sum is 38.

The square root of 173465813 is about 13170.6420876129. The cubic root of 173465813 is about 557.7051205500.

The spelling of 173465813 in words is "one hundred seventy-three million, four hundred sixty-five thousand, eight hundred thirteen".