245243441 has 2 divisors, whose sum is σ = 245243442. Its totient is φ = 245243440.

The previous prime is 245243419. The next prime is 245243483. The reversal of 245243441 is 144342542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211557025 + 33686416 = 14545^2 + 5804^2 .

It is a cyclic number.

It is not a de Polignac number, because 245243441 - 2²⁶ = 178134577 is a prime.

It is not a weakly prime, because it can be changed into another prime (245243041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122621720 + 122621721.

It is an arithmetic number, because the mean of its divisors is an integer number (122621721).

Almost surely, 2^245243441 is an apocalyptic number.

It is an amenable number.

245243441 is a deficient number, since it is larger than the sum of its proper divisors (1).

245243441 is an equidigital number, since it uses as much as digits as its factorization.

245243441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 29.

The square root of 245243441 is about 15660.2503492122. The cubic root of 245243441 is about 625.9396562192.

Adding to 245243441 its reverse (144342542), we get a palindrome (389585983).

The spelling of 245243441 in words is "two hundred forty-five million, two hundred forty-three thousand, four hundred forty-one".