245583697 has 2 divisors, whose sum is σ = 245583698. Its totient is φ = 245583696.

The previous prime is 245583647. The next prime is 245583749. The reversal of 245583697 is 796385542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214212496 + 31371201 = 14636^2 + 5601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245583697 is a prime.

It is a super-2 number, since 2×245583697² = 120622704464375618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245583697.

It is not a weakly prime, because it can be changed into another prime (245583647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122791848 + 122791849.

It is an arithmetic number, because the mean of its divisors is an integer number (122791849).

Almost surely, 2^245583697 is an apocalyptic number.

It is an amenable number.

245583697 is a deficient number, since it is larger than the sum of its proper divisors (1).

245583697 is an equidigital number, since it uses as much as digits as its factorization.

245583697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 245583697 is about 15671.1102669849. The cubic root of 245583697 is about 626.2290031380.

The spelling of 245583697 in words is "two hundred forty-five million, five hundred eighty-three thousand, six hundred ninety-seven".