3081261217 has 8 divisors (see below), whose sum is σ = 3384452160. Its totient is φ = 2792172240.

The previous prime is 3081261199. The next prime is 3081261221. The reversal of 3081261217 is 7121621803.

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 3081261217 - 2¹⁹ = 3080736929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3081261817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3525034 + ... + 3525907.

It is an arithmetic number, because the mean of its divisors is an integer number (423056520).

Almost surely, 2^3081261217 is an apocalyptic number.

It is an amenable number.

3081261217 is a deficient number, since it is larger than the sum of its proper divisors (303190943).

3081261217 is a wasteful number, since it uses less digits than its factorization.

3081261217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050983.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 3081261217 is about 55509.1093154988. The cubic root of 3081261217 is about 1455.1558375536.

It can be divided in two parts, 30812 and 61217, that added together give a palindrome (92029).

The spelling of 3081261217 in words is "three billion, eighty-one million, two hundred sixty-one thousand, two hundred seventeen".