3940123141 has 2 divisors, whose sum is σ = 3940123142. Its totient is φ = 3940123140.

The previous prime is 3940123093. The next prime is 3940123237. The reversal of 3940123141 is 1413210493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3235220641 + 704902500 = 56879^2 + 26550^2 .

It is a cyclic number.

It is not a de Polignac number, because 3940123141 - 2⁷ = 3940123013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3940123441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970061570 + 1970061571.

It is an arithmetic number, because the mean of its divisors is an integer number (1970061571).

Almost surely, 2^3940123141 is an apocalyptic number.

It is an amenable number.

3940123141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940123141 is an equidigital number, since it uses as much as digits as its factorization.

3940123141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3940123141 is about 62770.4001978640. The cubic root of 3940123141 is about 1579.4404819298.

The spelling of 3940123141 in words is "three billion, nine hundred forty million, one hundred twenty-three thousand, one hundred forty-one".