173420513 has 8 divisors (see below), whose sum is σ = 198612480. Its totient is φ = 148332960.

The previous prime is 173420501. The next prime is 173420531. The reversal of 173420513 is 315024371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 173420513 - 2¹⁰ = 173419489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173420593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22508 + ... + 29213.

It is an arithmetic number, because the mean of its divisors is an integer number (24826560).

Almost surely, 2^173420513 is an apocalyptic number.

It is an amenable number.

173420513 is a deficient number, since it is larger than the sum of its proper divisors (25191967).

173420513 is an equidigital number, since it uses as much as digits as its factorization.

173420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52207.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 173420513 is about 13168.9222413985. The cubic root of 173420513 is about 557.6565687325.

Adding to 173420513 its reverse (315024371), we get a palindrome (488444884).

The spelling of 173420513 in words is "one hundred seventy-three million, four hundred twenty thousand, five hundred thirteen".