3147500991161 has 2 divisors, whose sum is σ = 3147500991162. Its totient is φ = 3147500991160.

The previous prime is 3147500991143. The next prime is 3147500991181. The reversal of 3147500991161 is 1611990057413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3091056259600 + 56444731561 = 1758140^2 + 237581^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147500991161 - 2⁶ = 3147500991097 is a prime.

It is not a weakly prime, because it can be changed into another prime (3147500991101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573750495580 + 1573750495581.

It is an arithmetic number, because the mean of its divisors is an integer number (1573750495581).

Almost surely, 2^{3147500991161} is an apocalyptic number.

It is an amenable number.

3147500991161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147500991161 is an equidigital number, since it uses as much as digits as its factorization.

3147500991161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 3147500991161 in words is "three trillion, one hundred forty-seven billion, five hundred million, nine hundred ninety-one thousand, one hundred sixty-one".