1041399943 has 2 divisors, whose sum is σ = 1041399944. Its totient is φ = 1041399942.

The previous prime is 1041399941. The next prime is 1041400001. The reversal of 1041399943 is 3499931401.

It is a weak prime.

It is an emirp because it is prime and its reverse (3499931401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1041399943 - 2¹ = 1041399941 is a prime.

Together with 1041399941, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1041399943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041399941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520699971 + 520699972.

It is an arithmetic number, because the mean of its divisors is an integer number (520699972).

Almost surely, 2^1041399943 is an apocalyptic number.

1041399943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041399943 is an equidigital number, since it uses as much as digits as its factorization.

1041399943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 1041399943 is about 32270.7288885764. The cubic root of 1041399943 is about 1013.6138042915.

The spelling of 1041399943 in words is "one billion, forty-one million, three hundred ninety-nine thousand, nine hundred forty-three".