173420516 has 12 divisors (see below), whose sum is σ = 304668588. Its totient is φ = 86372352.

The previous prime is 173420501. The next prime is 173420531. The reversal of 173420516 is 615024371.

It is an interprime number because it is at equal distance from previous prime (173420501) and next prime (173420531).

It can be written as a sum of positive squares in 2 ways, for example, as 155102116 + 18318400 = 12454^2 + 4280^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83321 + ... + 85376.

It is an arithmetic number, because the mean of its divisors is an integer number (25389049).

Almost surely, 2^173420516 is an apocalyptic number.

It is an amenable number.

173420516 is a deficient number, since it is larger than the sum of its proper divisors (131248072).

173420516 is a wasteful number, since it uses less digits than its factorization.

173420516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168958 (or 168956 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 173420516 is about 13168.9223553030. The cubic root of 173420516 is about 557.6565719482.

Adding to 173420516 its reverse (615024371), we get a palindrome (788444887).

The spelling of 173420516 in words is "one hundred seventy-three million, four hundred twenty thousand, five hundred sixteen".