1044159161 has 2 divisors, whose sum is σ = 1044159162. Its totient is φ = 1044159160.

The previous prime is 1044159139. The next prime is 1044159197. The reversal of 1044159161 is 1619514401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 928725625 + 115433536 = 30475^2 + 10744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044159161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1044159121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522079580 + 522079581.

It is an arithmetic number, because the mean of its divisors is an integer number (522079581).

Almost surely, 2^1044159161 is an apocalyptic number.

It is an amenable number.

1044159161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044159161 is an equidigital number, since it uses as much as digits as its factorization.

1044159161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1044159161 is about 32313.4517035862. The cubic root of 1044159161 is about 1014.5082141200.

The spelling of 1044159161 in words is "one billion, forty-four million, one hundred fifty-nine thousand, one hundred sixty-one".