245304541 has 2 divisors, whose sum is σ = 245304542. Its totient is φ = 245304540.

The previous prime is 245304539. The next prime is 245304557. The reversal of 245304541 is 145403542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143496441 + 101808100 = 11979^2 + 10090^2 .

It is a cyclic number.

It is not a de Polignac number, because 245304541 - 2¹ = 245304539 is a prime.

Together with 245304539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245304641) 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 as a sum of consecutive naturals, namely, 122652270 + 122652271.

It is an arithmetic number, because the mean of its divisors is an integer number (122652271).

Almost surely, 2^245304541 is an apocalyptic number.

It is an amenable number.

245304541 is a deficient number, since it is larger than the sum of its proper divisors (1).

245304541 is an equidigital number, since it uses as much as digits as its factorization.

245304541 is an odious number, because the sum of its binary digits is odd.

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

The square root of 245304541 is about 15662.2010266757. The cubic root of 245304541 is about 625.9916341467.

Subtracting from 245304541 its reverse (145403542), we obtain a palindrome (99900999).

The spelling of 245304541 in words is "two hundred forty-five million, three hundred four thousand, five hundred forty-one".