245125243 has 4 divisors (see below), whose sum is σ = 267409368. Its totient is φ = 222841120.

The previous prime is 245125211. The next prime is 245125273. The reversal of 245125243 is 342521542.

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

It is a cyclic number.

It is not a de Polignac number, because 245125243 - 2⁵ = 245125211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245125273) 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, 11142046 + ... + 11142067.

It is an arithmetic number, because the mean of its divisors is an integer number (66852342).

Almost surely, 2^245125243 is an apocalyptic number.

245125243 is a deficient number, since it is larger than the sum of its proper divisors (22284125).

245125243 is a wasteful number, since it uses less digits than its factorization.

245125243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22284124.

The product of its digits is 9600, while the sum is 28.

The square root of 245125243 is about 15656.4760722201. The cubic root of 245125243 is about 625.8390803665.

Adding to 245125243 its reverse (342521542), we get a palindrome (587646785).

The spelling of 245125243 in words is "two hundred forty-five million, one hundred twenty-five thousand, two hundred forty-three".