4245615205 has 16 divisors (see below), whose sum is σ = 5490730224. Its totient is φ = 3132887040.

The previous prime is 4245615163. The next prime is 4245615221. The reversal of 4245615205 is 5025165424.

It can be written as a sum of positive squares in 8 ways, for example, as 628555041 + 3617060164 = 25071^2 + 60142^2 .

It is not a de Polignac number, because 4245615205 - 2¹⁹ = 4245090917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66117 + ... + 113413.

It is an arithmetic number, because the mean of its divisors is an integer number (343170639).

Almost surely, 2^4245615205 is an apocalyptic number.

It is an amenable number.

4245615205 is a deficient number, since it is larger than the sum of its proper divisors (1245115019).

4245615205 is a wasteful number, since it uses less digits than its factorization.

4245615205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48696.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 4245615205 is about 65158.3855309507. The cubic root of 4245615205 is about 1619.2486488105.

The spelling of 4245615205 in words is "four billion, two hundred forty-five million, six hundred fifteen thousand, two hundred five".