245263173 has 4 divisors (see below), whose sum is σ = 327017568. Its totient is φ = 163508780.

The previous prime is 245263169. The next prime is 245263211. The reversal of 245263173 is 371362542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245263173 - 2² = 245263169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245263133) 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, 40877193 + ... + 40877198.

It is an arithmetic number, because the mean of its divisors is an integer number (81754392).

Almost surely, 2^245263173 is an apocalyptic number.

It is an amenable number.

245263173 is a deficient number, since it is larger than the sum of its proper divisors (81754395).

245263173 is an equidigital number, since it uses as much as digits as its factorization.

245263173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81754394.

The product of its digits is 30240, while the sum is 33.

The square root of 245263173 is about 15660.8803392402. The cubic root of 245263173 is about 625.9564432262.

The spelling of 245263173 in words is "two hundred forty-five million, two hundred sixty-three thousand, one hundred seventy-three".