1445887159 has 2 divisors, whose sum is σ = 1445887160. Its totient is φ = 1445887158.

The previous prime is 1445887153. The next prime is 1445887189. The reversal of 1445887159 is 9517885441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445887159 - 2¹⁷ = 1445756087 is a prime.

It is a super-2 number, since 2×1445887159² = 4181179353122182562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445887153) 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, 722943579 + 722943580.

It is an arithmetic number, because the mean of its divisors is an integer number (722943580).

Almost surely, 2^1445887159 is an apocalyptic number.

1445887159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445887159 is an equidigital number, since it uses as much as digits as its factorization.

1445887159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 52.

The square root of 1445887159 is about 38024.8229318691. The cubic root of 1445887159 is about 1130.7800391162.

The spelling of 1445887159 in words is "one billion, four hundred forty-five million, eight hundred eighty-seven thousand, one hundred fifty-nine".