245020173 has 16 divisors (see below), whose sum is σ = 343512576. Its totient is φ = 155046320.

The previous prime is 245020147. The next prime is 245020177. The reversal of 245020173 is 371020542.

It is a cyclic number.

It is not a de Polignac number, because 245020173 - 2⁶ = 245020109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245020177) 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, 4515 + ... + 22592.

It is an arithmetic number, because the mean of its divisors is an integer number (21469536).

Almost surely, 2^245020173 is an apocalyptic number.

245020173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

245020173 is a deficient number, since it is larger than the sum of its proper divisors (98492403).

245020173 is a wasteful number, since it uses less digits than its factorization.

245020173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27264.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 245020173 is about 15653.1202320815. The cubic root of 245020173 is about 625.7496481115.

The spelling of 245020173 in words is "two hundred forty-five million, twenty thousand, one hundred seventy-three".