1144450913 has 2 divisors, whose sum is σ = 1144450914. Its totient is φ = 1144450912.

The previous prime is 1144450849. The next prime is 1144450939. The reversal of 1144450913 is 3190544411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119370849 + 25080064 = 33457^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144450913 - 2⁶ = 1144450849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144450913.

It is not a weakly prime, because it can be changed into another prime (1144450943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572225456 + 572225457.

It is an arithmetic number, because the mean of its divisors is an integer number (572225457).

Almost surely, 2^1144450913 is an apocalyptic number.

It is an amenable number.

1144450913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144450913 is an equidigital number, since it uses as much as digits as its factorization.

1144450913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1144450913 is about 33829.7341550300. The cubic root of 1144450913 is about 1046.0016990858.

The spelling of 1144450913 in words is "one billion, one hundred forty-four million, four hundred fifty thousand, nine hundred thirteen".