245415243 has 8 divisors (see below), whose sum is σ = 327297856. Its totient is φ = 163571400.

The previous prime is 245415241. The next prime is 245415253. The reversal of 245415243 is 342514542.

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

It is not a de Polignac number, because 245415243 - 2¹ = 245415241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245415243.

It is not an unprimeable number, because it can be changed into a prime (245415241) 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, 12048 + ... + 25218.

It is an arithmetic number, because the mean of its divisors is an integer number (40912232).

Almost surely, 2^245415243 is an apocalyptic number.

245415243 is a deficient number, since it is larger than the sum of its proper divisors (81882613).

245415243 is a wasteful number, since it uses less digits than its factorization.

245415243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19385.

The product of its digits is 19200, while the sum is 30.

The square root of 245415243 is about 15665.7346779524. The cubic root of 245415243 is about 626.0857866421.

Adding to 245415243 its reverse (342514542), we get a palindrome (587929785).

The spelling of 245415243 in words is "two hundred forty-five million, four hundred fifteen thousand, two hundred forty-three".