1123449751 has 2 divisors, whose sum is σ = 1123449752. Its totient is φ = 1123449750.

The previous prime is 1123449707. The next prime is 1123449773. The reversal of 1123449751 is 1579443211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123449751 - 2¹³ = 1123441559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123449751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123449251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561724875 + 561724876.

It is an arithmetic number, because the mean of its divisors is an integer number (561724876).

Almost surely, 2^1123449751 is an apocalyptic number.

1123449751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123449751 is an equidigital number, since it uses as much as digits as its factorization.

1123449751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 1123449751 is about 33517.9019480635. The cubic root of 1123449751 is about 1039.5639663128.

The spelling of 1123449751 in words is "one billion, one hundred twenty-three million, four hundred forty-nine thousand, seven hundred fifty-one".