1144511399 has 2 divisors, whose sum is σ = 1144511400. Its totient is φ = 1144511398.

The previous prime is 1144511393. The next prime is 1144511471. The reversal of 1144511399 is 9931154411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144511399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144511393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572255699 + 572255700.

It is an arithmetic number, because the mean of its divisors is an integer number (572255700).

Almost surely, 2^1144511399 is an apocalyptic number.

1144511399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144511399 is an equidigital number, since it uses as much as digits as its factorization.

1144511399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 1144511399 is about 33830.6281200926. The cubic root of 1144511399 is about 1046.0201263635.

The spelling of 1144511399 in words is "one billion, one hundred forty-four million, five hundred eleven thousand, three hundred ninety-nine".