2116241653 has 2 divisors, whose sum is σ = 2116241654. Its totient is φ = 2116241652.

The previous prime is 2116241623. The next prime is 2116241657. The reversal of 2116241653 is 3561426112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1905933649 + 210308004 = 43657^2 + 14502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116241653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116241657) by changing a digit.

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 as a sum of consecutive naturals, namely, 1058120826 + 1058120827.

It is an arithmetic number, because the mean of its divisors is an integer number (1058120827).

Almost surely, 2^2116241653 is an apocalyptic number.

It is an amenable number.

2116241653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116241653 is an equidigital number, since it uses as much as digits as its factorization.

2116241653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 2116241653 is about 46002.6265880547. The cubic root of 2116241653 is about 1283.8720747819.

Adding to 2116241653 its reverse (3561426112), we get a palindrome (5677667765).

The spelling of 2116241653 in words is "two billion, one hundred sixteen million, two hundred forty-one thousand, six hundred fifty-three".