1038578243 has 2 divisors, whose sum is σ = 1038578244. Its totient is φ = 1038578242.

The previous prime is 1038578221. The next prime is 1038578249. The reversal of 1038578243 is 3428758301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1038578243 - 2¹⁴ = 1038561859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1038578243.

It is not a weakly prime, because it can be changed into another prime (1038578249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519289121 + 519289122.

It is an arithmetic number, because the mean of its divisors is an integer number (519289122).

Almost surely, 2^1038578243 is an apocalyptic number.

1038578243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038578243 is an equidigital number, since it uses as much as digits as its factorization.

1038578243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1038578243 is about 32226.9800477798. The cubic root of 1038578243 is about 1012.6975053004.

The spelling of 1038578243 in words is "one billion, thirty-eight million, five hundred seventy-eight thousand, two hundred forty-three".