245442502397 has 2 divisors, whose sum is σ = 245442502398. Its totient is φ = 245442502396.

The previous prime is 245442502351. The next prime is 245442502429. The reversal of 245442502397 is 793205244542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162446078116 + 82996424281 = 403046^2 + 288091^2 .

It is a cyclic number.

It is not a de Polignac number, because 245442502397 - 2⁸ = 245442502141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245442502337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122721251198 + 122721251199.

It is an arithmetic number, because the mean of its divisors is an integer number (122721251199).

Almost surely, 2^245442502397 is an apocalyptic number.

It is an amenable number.

245442502397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245442502397 is an equidigital number, since it uses as much as digits as its factorization.

245442502397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 245442502397 in words is "two hundred forty-five billion, four hundred forty-two million, five hundred two thousand, three hundred ninety-seven".