245361565 has 8 divisors (see below), whose sum is σ = 296079840. Its totient is φ = 195191952.

The previous prime is 245361551. The next prime is 245361583. The reversal of 245361565 is 565163542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245361565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136179 + ... + 137968.

It is an arithmetic number, because the mean of its divisors is an integer number (37009980).

Almost surely, 2^245361565 is an apocalyptic number.

It is an amenable number.

245361565 is a deficient number, since it is larger than the sum of its proper divisors (50718275).

245361565 is a wasteful number, since it uses less digits than its factorization.

245361565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274331.

The product of its digits is 108000, while the sum is 37.

The square root of 245361565 is about 15664.0213546841. The cubic root of 245361565 is about 626.0401368244.

The spelling of 245361565 in words is "two hundred forty-five million, three hundred sixty-one thousand, five hundred sixty-five".