1038815749 has 2 divisors, whose sum is σ = 1038815750. Its totient is φ = 1038815748.

The previous prime is 1038815731. The next prime is 1038815807. The reversal of 1038815749 is 9475188301.

It is a happy number.

1038815749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038772900 + 42849 = 32230^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038815749 - 2⁵ = 1038815717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1038815699 and 1038815708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038815849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519407874 + 519407875.

It is an arithmetic number, because the mean of its divisors is an integer number (519407875).

Almost surely, 2^1038815749 is an apocalyptic number.

It is an amenable number.

1038815749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038815749 is an equidigital number, since it uses as much as digits as its factorization.

1038815749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1038815749 is about 32230.6647309670. The cubic root of 1038815749 is about 1012.7746952484.

The spelling of 1038815749 in words is "one billion, thirty-eight million, eight hundred fifteen thousand, seven hundred forty-nine".