4245145705 has 8 divisors (see below), whose sum is σ = 5131359432. Its totient is φ = 3371326848.

The previous prime is 4245145691. The next prime is 4245145727. The reversal of 4245145705 is 5075415424.

It can be written as a sum of positive squares in 4 ways, for example, as 19105641 + 4226040064 = 4371^2 + 65008^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4245145705 - 2¹⁷ = 4245014633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3097962 + ... + 3099331.

It is an arithmetic number, because the mean of its divisors is an integer number (641419929).

Almost surely, 2^4245145705 is an apocalyptic number.

It is an amenable number.

4245145705 is a deficient number, since it is larger than the sum of its proper divisors (886213727).

4245145705 is a wasteful number, since it uses less digits than its factorization.

4245145705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197435.

The product of its (nonzero) digits is 112000, while the sum is 37.

The square root of 4245145705 is about 65154.7826717272. The cubic root of 4245145705 is about 1619.1889585788.

The spelling of 4245145705 in words is "four billion, two hundred forty-five million, one hundred forty-five thousand, seven hundred five".