1040128943 has 8 divisors (see below), whose sum is σ = 1189493760. Its totient is φ = 890957880.

The previous prime is 1040128937. The next prime is 1040128949. The reversal of 1040128943 is 3498210401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1040128937) and next prime (1040128949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040128943 - 2¹⁶ = 1040063407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040128949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36743 + ... + 58568.

It is an arithmetic number, because the mean of its divisors is an integer number (148686720).

Almost surely, 2^1040128943 is an apocalyptic number.

1040128943 is a deficient number, since it is larger than the sum of its proper divisors (149364817).

1040128943 is an equidigital number, since it uses as much as digits as its factorization.

1040128943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96877.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1040128943 is about 32251.0301075795. The cubic root of 1040128943 is about 1013.2012738248.

The spelling of 1040128943 in words is "one billion, forty million, one hundred twenty-eight thousand, nine hundred forty-three".