1144451887 has 2 divisors, whose sum is σ = 1144451888. Its totient is φ = 1144451886.

The previous prime is 1144451821. The next prime is 1144451929. The reversal of 1144451887 is 7881544411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144451887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144401887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572225943 + 572225944.

It is an arithmetic number, because the mean of its divisors is an integer number (572225944).

Almost surely, 2^1144451887 is an apocalyptic number.

1144451887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144451887 is an equidigital number, since it uses as much as digits as its factorization.

1144451887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 43.

The square root of 1144451887 is about 33829.7485506470. The cubic root of 1144451887 is about 1046.0019958236.

The spelling of 1144451887 in words is "one billion, one hundred forty-four million, four hundred fifty-one thousand, eight hundred eighty-seven".