245652173 has 4 divisors (see below), whose sum is σ = 264548508. Its totient is φ = 226755840.

The previous prime is 245652109. The next prime is 245652181. The reversal of 245652173 is 371256542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51523684 + 194128489 = 7178^2 + 13933^2 .

It is a cyclic number.

It is not a de Polignac number, because 245652173 - 2⁶ = 245652109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245652073) 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, 9448148 + ... + 9448173.

It is an arithmetic number, because the mean of its divisors is an integer number (66137127).

Almost surely, 2^245652173 is an apocalyptic number.

It is an amenable number.

245652173 is a deficient number, since it is larger than the sum of its proper divisors (18896335).

245652173 is a wasteful number, since it uses less digits than its factorization.

245652173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896334.

The product of its digits is 50400, while the sum is 35.

The square root of 245652173 is about 15673.2948992865. The cubic root of 245652173 is about 626.2872014533.

The spelling of 245652173 in words is "two hundred forty-five million, six hundred fifty-two thousand, one hundred seventy-three".