245239017 has 8 divisors (see below), whose sum is σ = 327269280. Its totient is φ = 163350720.

The previous prime is 245238941. The next prime is 245239031. The reversal of 245239017 is 710932542.

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

It is a de Polignac number, because none of the positive numbers 2^k-245239017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245239217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31392 + ... + 38417.

It is an arithmetic number, because the mean of its divisors is an integer number (40908660).

Almost surely, 2^245239017 is an apocalyptic number.

It is an amenable number.

245239017 is a deficient number, since it is larger than the sum of its proper divisors (82030263).

245239017 is a wasteful number, since it uses less digits than its factorization.

245239017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70983.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 245239017 is about 15660.1090992368. The cubic root of 245239017 is about 625.9358923759.

The spelling of 245239017 in words is "two hundred forty-five million, two hundred thirty-nine thousand, seventeen".