2218848129 has 6 divisors (see below), whose sum is σ = 3205002866. Its totient is φ = 1479232080.

The previous prime is 2218848089. The next prime is 2218848133. The reversal of 2218848129 is 9218488122.

It can be written as a sum of positive squares in only one way, i.e., 2012868225 + 205979904 = 44865^2 + 14352^2 .

It is not a de Polignac number, because 2218848129 - 2¹³ = 2218839937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2218848629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123269332 + ... + 123269349.

Almost surely, 2^2218848129 is an apocalyptic number.

It is an amenable number.

2218848129 is a deficient number, since it is larger than the sum of its proper divisors (986154737).

2218848129 is a wasteful number, since it uses less digits than its factorization.

2218848129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246538687 (or 246538684 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 2218848129 is about 47104.6508213361. The cubic root of 2218848129 is about 1304.2950894224.

The spelling of 2218848129 in words is "two billion, two hundred eighteen million, eight hundred forty-eight thousand, one hundred twenty-nine".