245489765 has 8 divisors (see below), whose sum is σ = 295630368. Its totient is φ = 195696720.

The previous prime is 245489759. The next prime is 245489767. The reversal of 245489765 is 567984542.

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

It is not a de Polignac number, because 245489765 - 2¹⁴ = 245473381 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 (245489767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85331 + ... + 88160.

It is an arithmetic number, because the mean of its divisors is an integer number (36953796).

Almost surely, 2^245489765 is an apocalyptic number.

It is an amenable number.

245489765 is a deficient number, since it is larger than the sum of its proper divisors (50140603).

245489765 is a wasteful number, since it uses less digits than its factorization.

245489765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173779.

The product of its digits is 2419200, while the sum is 50.

The square root of 245489765 is about 15668.1130006137. The cubic root of 245489765 is about 626.1491519580.

The spelling of 245489765 in words is "two hundred forty-five million, four hundred eighty-nine thousand, seven hundred sixty-five".