3956143 has 2 divisors, whose sum is σ = 3956144. Its totient is φ = 3956142.

The previous prime is 3956119. The next prime is 3956153. The reversal of 3956143 is 3416593.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3956143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3956153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978071 + 1978072.

It is an arithmetic number, because the mean of its divisors is an integer number (1978072).

Almost surely, 2^3956143 is an apocalyptic number.

3956143 is a deficient number, since it is larger than the sum of its proper divisors (1).

3956143 is an equidigital number, since it uses as much as digits as its factorization.

3956143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 3956143 is about 1989.0055304096. The cubic root of 3956143 is about 158.1578164638.

The spelling of 3956143 in words is "three million, nine hundred fifty-six thousand, one hundred forty-three".