245358997 has 8 divisors (see below), whose sum is σ = 266850360. Its totient is φ = 224241600.

The previous prime is 245358991. The next prime is 245359001. The reversal of 245358997 is 799853542.

It can be written as a sum of positive squares in 4 ways, for example, as 69372241 + 175986756 = 8329^2 + 13266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245358997 - 2¹¹ = 245356949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245358991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92122 + ... + 94747.

It is an arithmetic number, because the mean of its divisors is an integer number (33356295).

Almost surely, 2^245358997 is an apocalyptic number.

It is an amenable number.

245358997 is a deficient number, since it is larger than the sum of its proper divisors (21491363).

245358997 is a wasteful number, since it uses less digits than its factorization.

245358997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186983.

The product of its digits is 2721600, while the sum is 52.

The square root of 245358997 is about 15663.9393831820. The cubic root of 245358997 is about 626.0379527324.

The spelling of 245358997 in words is "two hundred forty-five million, three hundred fifty-eight thousand, nine hundred ninety-seven".