1224112541 has 2 divisors, whose sum is σ = 1224112542. Its totient is φ = 1224112540.

The previous prime is 1224112537. The next prime is 1224112543. The reversal of 1224112541 is 1452114221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987844900 + 236267641 = 31430^2 + 15371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224112541 - 2² = 1224112537 is a prime.

Together with 1224112543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224112543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612056270 + 612056271.

It is an arithmetic number, because the mean of its divisors is an integer number (612056271).

Almost surely, 2^1224112541 is an apocalyptic number.

It is an amenable number.

1224112541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224112541 is an equidigital number, since it uses as much as digits as its factorization.

1224112541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 23.

The square root of 1224112541 is about 34987.3197172919. The cubic root of 1224112541 is about 1069.7290317435.

Adding to 1224112541 its reverse (1452114221), we get a palindrome (2676226762).

The spelling of 1224112541 in words is "one billion, two hundred twenty-four million, one hundred twelve thousand, five hundred forty-one".