9139491202147 has 2 divisors, whose sum is σ = 9139491202148. Its totient is φ = 9139491202146.

The previous prime is 9139491202109. The next prime is 9139491202181. The reversal of 9139491202147 is 7412021949319.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9139491202147 - 2²⁷ = 9139356984419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9139491202094 and 9139491202103.

It is not a weakly prime, because it can be changed into another prime (9139491203147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4569745601073 + 4569745601074.

It is an arithmetic number, because the mean of its divisors is an integer number (4569745601074).

Almost surely, 2^{9139491202147} is an apocalyptic number.

9139491202147 is a deficient number, since it is larger than the sum of its proper divisors (1).

9139491202147 is an equidigital number, since it uses as much as digits as its factorization.

9139491202147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 9139491202147 in words is "nine trillion, one hundred thirty-nine billion, four hundred ninety-one million, two hundred two thousand, one hundred forty-seven".