49143943 has 2 divisors, whose sum is σ = 49143944. Its totient is φ = 49143942.

The previous prime is 49143929. The next prime is 49143947. The reversal of 49143943 is 34934194.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49143943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49143947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24571971 + 24571972.

It is an arithmetic number, because the mean of its divisors is an integer number (24571972).

Almost surely, 2^49143943 is an apocalyptic number.

49143943 is a deficient number, since it is larger than the sum of its proper divisors (1).

49143943 is an equidigital number, since it uses as much as digits as its factorization.

49143943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 49143943 is about 7010.2741030576. The cubic root of 49143943 is about 366.2885414134.

It can be divided in two parts, 49143 and 943, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 49143943 in words is "forty-nine million, one hundred forty-three thousand, nine hundred forty-three".