1125424213 has 2 divisors, whose sum is σ = 1125424214. Its totient is φ = 1125424212.

The previous prime is 1125424193. The next prime is 1125424219. The reversal of 1125424213 is 3124245211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650097009 + 475327204 = 25497^2 + 21802^2 .

It is an emirp because it is prime and its reverse (3124245211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125424213 - 2⁹ = 1125423701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125424219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562712106 + 562712107.

It is an arithmetic number, because the mean of its divisors is an integer number (562712107).

Almost surely, 2^1125424213 is an apocalyptic number.

It is an amenable number.

1125424213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125424213 is an equidigital number, since it uses as much as digits as its factorization.

1125424213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 1125424213 is about 33547.3428605009. The cubic root of 1125424213 is about 1040.1726208165.

Adding to 1125424213 its reverse (3124245211), we get a palindrome (4249669424).

The spelling of 1125424213 in words is "one billion, one hundred twenty-five million, four hundred twenty-four thousand, two hundred thirteen".