3081961243 has 2 divisors, whose sum is σ = 3081961244. Its totient is φ = 3081961242.

The previous prime is 3081961171. The next prime is 3081961247. The reversal of 3081961243 is 3421691803.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3081961243 - 2¹³ = 3081953051 is a prime.

It is not a weakly prime, because it can be changed into another prime (3081961247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540980621 + 1540980622.

It is an arithmetic number, because the mean of its divisors is an integer number (1540980622).

Almost surely, 2^3081961243 is an apocalyptic number.

3081961243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3081961243 is an equidigital number, since it uses as much as digits as its factorization.

3081961243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3081961243 is about 55515.4144630120. The cubic root of 3081961243 is about 1455.2660272581.

It can be divided in two parts, 3081 and 961243, that added together give a square (964324 = 982²).

The spelling of 3081961243 in words is "three billion, eighty-one million, nine hundred sixty-one thousand, two hundred forty-three".