2227581065 has 8 divisors (see below), whose sum is σ = 2679765768. Its totient is φ = 1777619200.

The previous prime is 2227581053. The next prime is 2227581067. The reversal of 2227581065 is 5601857222.

It can be written as a sum of positive squares in 4 ways, for example, as 892336384 + 1335244681 = 29872^2 + 36541^2 .

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

It is not a de Polignac number, because 2227581065 - 2¹⁸ = 2227318921 is a prime.

It is a super-2 number, since 2×2227581065² = 9924234802293068450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2227581067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553502 + ... + 557511.

It is an arithmetic number, because the mean of its divisors is an integer number (334970721).

Almost surely, 2^2227581065 is an apocalyptic number.

It is an amenable number.

2227581065 is a deficient number, since it is larger than the sum of its proper divisors (452184703).

2227581065 is a wasteful number, since it uses less digits than its factorization.

2227581065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111419.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2227581065 is about 47197.2569647856. The cubic root of 2227581065 is about 1306.0039963465.

The spelling of 2227581065 in words is "two billion, two hundred twenty-seven million, five hundred eighty-one thousand, sixty-five".