245645012 has 6 divisors (see below), whose sum is σ = 429878778. Its totient is φ = 122822504.

The previous prime is 245644999. The next prime is 245645017. The reversal of 245645012 is 210546542.

It can be written as a sum of positive squares in only one way, i.e., 211586116 + 34058896 = 14546^2 + 5836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245645017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30705623 + ... + 30705630.

It is an arithmetic number, because the mean of its divisors is an integer number (71646463).

Almost surely, 2^245645012 is an apocalyptic number.

It is an amenable number.

245645012 is a deficient number, since it is larger than the sum of its proper divisors (184233766).

245645012 is a wasteful number, since it uses less digits than its factorization.

245645012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61411257 (or 61411255 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 245645012 is about 15673.0664517190. The cubic root of 245645012 is about 626.2811157669.

The spelling of 245645012 in words is "two hundred forty-five million, six hundred forty-five thousand, twelve".