1009617139 has 2 divisors, whose sum is σ = 1009617140. Its totient is φ = 1009617138.

The previous prime is 1009617071. The next prime is 1009617143. The reversal of 1009617139 is 9317169001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1009617139 - 2¹⁷ = 1009486067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1009617098 and 1009617107.

It is not a weakly prime, because it can be changed into another prime (1009617149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504808569 + 504808570.

It is an arithmetic number, because the mean of its divisors is an integer number (504808570).

Almost surely, 2^1009617139 is an apocalyptic number.

1009617139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009617139 is an equidigital number, since it uses as much as digits as its factorization.

1009617139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 1009617139 is about 31774.4730719488. The cubic root of 1009617139 is about 1003.1954909610.

The spelling of 1009617139 in words is "one billion, nine million, six hundred seventeen thousand, one hundred thirty-nine".