3145586681 has 2 divisors, whose sum is σ = 3145586682. Its totient is φ = 3145586680.

The previous prime is 3145586677. The next prime is 3145586683. The reversal of 3145586681 is 1866855413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2039425600 + 1106161081 = 45160^2 + 33259^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145586681 - 2² = 3145586677 is a prime.

It is a super-2 number, since 2×3145586681² = 19789431135369191522, which contains 22 as substring.

Together with 3145586683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3145586683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572793340 + 1572793341.

It is an arithmetic number, because the mean of its divisors is an integer number (1572793341).

Almost surely, 2^3145586681 is an apocalyptic number.

It is an amenable number.

3145586681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145586681 is an equidigital number, since it uses as much as digits as its factorization.

3145586681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 47.

The square root of 3145586681 is about 56085.5300500940. The cubic root of 3145586681 is about 1465.2122886965.

The spelling of 3145586681 in words is "three billion, one hundred forty-five million, five hundred eighty-six thousand, six hundred eighty-one".