245534249 has 2 divisors, whose sum is σ = 245534250. Its totient is φ = 245534248.

The previous prime is 245534243. The next prime is 245534273. The reversal of 245534249 is 942435542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196981225 + 48553024 = 14035^2 + 6968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245534249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245534243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122767124 + 122767125.

It is an arithmetic number, because the mean of its divisors is an integer number (122767125).

Almost surely, 2^245534249 is an apocalyptic number.

It is an amenable number.

245534249 is a deficient number, since it is larger than the sum of its proper divisors (1).

245534249 is an equidigital number, since it uses as much as digits as its factorization.

245534249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The square root of 245534249 is about 15669.5325073852. The cubic root of 245534249 is about 626.1869701493.

The spelling of 245534249 in words is "two hundred forty-five million, five hundred thirty-four thousand, two hundred forty-nine".