3145846181 has 2 divisors, whose sum is σ = 3145846182. Its totient is φ = 3145846180.

The previous prime is 3145846139. The next prime is 3145846247. The reversal of 3145846181 is 1816485413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3132193156 + 13653025 = 55966^2 + 3695^2 .

It is an emirp because it is prime and its reverse (1816485413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3145846181 is a prime.

It is a super-2 number, since 2×3145846181² = 19792696389024569522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3145846381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572923090 + 1572923091.

It is an arithmetic number, because the mean of its divisors is an integer number (1572923091).

Almost surely, 2^3145846181 is an apocalyptic number.

It is an amenable number.

3145846181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145846181 is an equidigital number, since it uses as much as digits as its factorization.

3145846181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 3145846181 is about 56087.8434333145. The cubic root of 3145846181 is about 1465.2525792340.

The spelling of 3145846181 in words is "three billion, one hundred forty-five million, eight hundred forty-six thousand, one hundred eighty-one".