245320345 has 8 divisors (see below), whose sum is σ = 299210760. Its totient is φ = 193038720.

The previous prime is 245320337. The next prime is 245320349. The reversal of 245320345 is 543023542.

It can be written as a sum of positive squares in 4 ways, for example, as 11505664 + 233814681 = 3392^2 + 15291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245320345 - 2³ = 245320337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245320349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401860 + ... + 402469.

It is an arithmetic number, because the mean of its divisors is an integer number (37401345).

Almost surely, 2^245320345 is an apocalyptic number.

It is an amenable number.

245320345 is a deficient number, since it is larger than the sum of its proper divisors (53890415).

245320345 is an equidigital number, since it uses as much as digits as its factorization.

245320345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804395.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 245320345 is about 15662.7055453392. The cubic root of 245320345 is about 626.0050772452.

Adding to 245320345 its reverse (543023542), we get a palindrome (788343887).

The spelling of 245320345 in words is "two hundred forty-five million, three hundred twenty thousand, three hundred forty-five".