1017745139 has 2 divisors, whose sum is σ = 1017745140. Its totient is φ = 1017745138.

The previous prime is 1017745129. The next prime is 1017745153. The reversal of 1017745139 is 9315477101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1017745139 - 2²⁴ = 1000967923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1017745109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508872569 + 508872570.

It is an arithmetic number, because the mean of its divisors is an integer number (508872570).

Almost surely, 2^1017745139 is an apocalyptic number.

1017745139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017745139 is an equidigital number, since it uses as much as digits as its factorization.

1017745139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 1017745139 is about 31902.1180958255. The cubic root of 1017745139 is about 1005.8803994559.

The spelling of 1017745139 in words is "one billion, seventeen million, seven hundred forty-five thousand, one hundred thirty-nine".