1044499861 has 2 divisors, whose sum is σ = 1044499862. Its totient is φ = 1044499860.

The previous prime is 1044499849. The next prime is 1044499871. The reversal of 1044499861 is 1689944401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816187761 + 228312100 = 28569^2 + 15110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044499861 - 2⁵ = 1044499829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044499801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522249930 + 522249931.

It is an arithmetic number, because the mean of its divisors is an integer number (522249931).

Almost surely, 2^1044499861 is an apocalyptic number.

It is an amenable number.

1044499861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044499861 is an equidigital number, since it uses as much as digits as its factorization.

1044499861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1044499861 is about 32318.7230719284. The cubic root of 1044499861 is about 1014.6185438395.

The spelling of 1044499861 in words is "one billion, forty-four million, four hundred ninety-nine thousand, eight hundred sixty-one".