245163973 has 4 divisors (see below), whose sum is σ = 258067360. Its totient is φ = 232260588.

The previous prime is 245163967. The next prime is 245163979. The reversal of 245163973 is 379361542.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (245163967) and next prime (245163979).

It is a cyclic number.

It is not a de Polignac number, because 245163973 - 2¹⁷ = 245032901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245163979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6451665 + ... + 6451702.

It is an arithmetic number, because the mean of its divisors is an integer number (64516840).

Almost surely, 2^245163973 is an apocalyptic number.

It is an amenable number.

245163973 is a deficient number, since it is larger than the sum of its proper divisors (12903387).

245163973 is a wasteful number, since it uses less digits than its factorization.

245163973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12903386.

The product of its digits is 136080, while the sum is 40.

The square root of 245163973 is about 15657.7128917349. The cubic root of 245163973 is about 625.8720396690.

The spelling of 245163973 in words is "two hundred forty-five million, one hundred sixty-three thousand, nine hundred seventy-three".