1001434043 has 4 divisors (see below), whose sum is σ = 1001692728. Its totient is φ = 1001175360.

The previous prime is 1001434039. The next prime is 1001434051. The reversal of 1001434043 is 3404341001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001434043 - 2² = 1001434039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001434073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123446 + ... + 131307.

It is an arithmetic number, because the mean of its divisors is an integer number (250423182).

Almost surely, 2^1001434043 is an apocalyptic number.

1001434043 is a deficient number, since it is larger than the sum of its proper divisors (258685).

1001434043 is an equidigital number, since it uses as much as digits as its factorization.

1001434043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258684.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1001434043 is about 31645.4426892720. The cubic root of 1001434043 is about 1000.4777860175.

Adding to 1001434043 its reverse (3404341001), we get a palindrome (4405775044).

The spelling of 1001434043 in words is "one billion, one million, four hundred thirty-four thousand, forty-three".