1872224113 has 2 divisors, whose sum is σ = 1872224114. Its totient is φ = 1872224112.

The previous prime is 1872224089. The next prime is 1872224117. The reversal of 1872224113 is 3114222781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1573867584 + 298356529 = 39672^2 + 17273^2 .

It is an emirp because it is prime and its reverse (3114222781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1872224113 - 2⁹ = 1872223601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1872224117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936112056 + 936112057.

It is an arithmetic number, because the mean of its divisors is an integer number (936112057).

Almost surely, 2^1872224113 is an apocalyptic number.

It is an amenable number.

1872224113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872224113 is an equidigital number, since it uses as much as digits as its factorization.

1872224113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 1872224113 is about 43269.2051348300. The cubic root of 1872224113 is about 1232.4972098567.

Adding to 1872224113 its reverse (3114222781), we get a palindrome (4986446894).

The spelling of 1872224113 in words is "one billion, eight hundred seventy-two million, two hundred twenty-four thousand, one hundred thirteen".