245245397 has 2 divisors, whose sum is σ = 245245398. Its totient is φ = 245245396.

The previous prime is 245245387. The next prime is 245245409. The reversal of 245245397 is 793542542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163686436 + 81558961 = 12794^2 + 9031^2 .

It is a cyclic number.

It is not a de Polignac number, because 245245397 - 2⁶ = 245245333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245245307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122622698 + 122622699.

It is an arithmetic number, because the mean of its divisors is an integer number (122622699).

Almost surely, 2^245245397 is an apocalyptic number.

It is an amenable number.

245245397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245245397 is an equidigital number, since it uses as much as digits as its factorization.

245245397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The square root of 245245397 is about 15660.3128001966. The cubic root of 245245397 is about 625.9413203272.

The spelling of 245245397 in words is "two hundred forty-five million, two hundred forty-five thousand, three hundred ninety-seven".