173730345 has 16 divisors (see below), whose sum is σ = 278722752. Its totient is φ = 92404800.

The previous prime is 173730341. The next prime is 173730373. The reversal of 173730345 is 543037371.

It is a happy number.

173730345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 173730345 - 2² = 173730341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (173730341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9931 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (17420172).

Almost surely, 2^173730345 is an apocalyptic number.

173730345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

173730345 is a deficient number, since it is larger than the sum of its proper divisors (104992407).

173730345 is a wasteful number, since it uses less digits than its factorization.

173730345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31432.

The product of its (nonzero) digits is 26460, while the sum is 33.

The square root of 173730345 is about 13180.6807487322. The cubic root of 173730345 is about 557.9884730600.

The spelling of 173730345 in words is "one hundred seventy-three million, seven hundred thirty thousand, three hundred forty-five".