4245695281 has 9 divisors (see below), whose sum is σ = 4439883819. Its totient is φ = 4059666336.

The previous prime is 4245695269. The next prime is 4245695299. The reversal of 4245695281 is 1825965424.

The square root of 4245695281 is 65159.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1666680625 + 2579014656 = 40825^2 + 50784^2 .

It is not a de Polignac number, because 4245695281 - 2⁹ = 4245694769 is a prime.

It is a super-2 number, since 2×4245695281² = 36051856838211337922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4245695081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1497241 + ... + 1500073.

Almost surely, 2^4245695281 is an apocalyptic number.

4245695281 is the 65159-th square number.

4245695281 is the 32580-th centered octagonal number.

It is an amenable number.

4245695281 is a deficient number, since it is larger than the sum of its proper divisors (194188538).

4245695281 is an frugal number, since it uses more digits than its factorization.

4245695281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712 (or 2856 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The cubic root of 4245695281 is about 1619.2588288931.

The spelling of 4245695281 in words is "four billion, two hundred forty-five million, six hundred ninety-five thousand, two hundred eighty-one".