245431412243 has 4 divisors (see below), whose sum is σ = 245484736728. Its totient is φ = 245378087760.

The previous prime is 245431412221. The next prime is 245431412273. The reversal of 245431412243 is 342214134542.

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 245431412243 - 2⁸ = 245431411987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245431412273) 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, 26655338 + ... + 26664543.

It is an arithmetic number, because the mean of its divisors is an integer number (61371184182).

Almost surely, 2^245431412243 is an apocalyptic number.

245431412243 is a deficient number, since it is larger than the sum of its proper divisors (53324485).

245431412243 is an equidigital number, since it uses as much as digits as its factorization.

245431412243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53324484.

The product of its digits is 92160, while the sum is 35.

Adding to 245431412243 its reverse (342214134542), we get a palindrome (587645546785).

The spelling of 245431412243 in words is "two hundred forty-five billion, four hundred thirty-one million, four hundred twelve thousand, two hundred forty-three".