3140643193 has 2 divisors, whose sum is σ = 3140643194. Its totient is φ = 3140643192.

The previous prime is 3140643179. The next prime is 3140643217. The reversal of 3140643193 is 3913460413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2235114729 + 905528464 = 47277^2 + 30092^2 .

It is an emirp because it is prime and its reverse (3913460413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3140643193 - 2⁵ = 3140643161 is a prime.

It is not a weakly prime, because it can be changed into another prime (3140640193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570321596 + 1570321597.

It is an arithmetic number, because the mean of its divisors is an integer number (1570321597).

Almost surely, 2^3140643193 is an apocalyptic number.

It is an amenable number.

3140643193 is a deficient number, since it is larger than the sum of its proper divisors (1).

3140643193 is an equidigital number, since it uses as much as digits as its factorization.

3140643193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3140643193 is about 56041.4417462649. The cubic root of 3140643193 is about 1464.4443283942. Note that the first 3 decimals are identical.

The spelling of 3140643193 in words is "three billion, one hundred forty million, six hundred forty-three thousand, one hundred ninety-three".