245342454397 has 2 divisors, whose sum is σ = 245342454398. Its totient is φ = 245342454396.

The previous prime is 245342454391. The next prime is 245342454449. The reversal of 245342454397 is 793454243542.

It is an a-pointer prime, because the next prime (245342454449) can be obtained adding 245342454397 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169393157476 + 75949296921 = 411574^2 + 275589^2 .

It is a cyclic number.

It is not a de Polignac number, because 245342454397 - 2³¹ = 243194970749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245342454391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122671227198 + 122671227199.

It is an arithmetic number, because the mean of its divisors is an integer number (122671227199).

Almost surely, 2^245342454397 is an apocalyptic number.

It is an amenable number.

245342454397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245342454397 is an equidigital number, since it uses as much as digits as its factorization.

245342454397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 52.

The spelling of 245342454397 in words is "two hundred forty-five billion, three hundred forty-two million, four hundred fifty-four thousand, three hundred ninety-seven".