7121043 has 6 divisors (see below), whose sum is σ = 10285964. Its totient is φ = 4747356.

The previous prime is 7121033. The next prime is 7121071. The reversal of 7121043 is 3401217.

It is not a de Polignac number, because 7121043 - 2¹⁴ = 7104659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7121033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 395605 + ... + 395622.

Almost surely, 2^7121043 is an apocalyptic number.

7121043 is a deficient number, since it is larger than the sum of its proper divisors (3164921).

7121043 is a wasteful number, since it uses less digits than its factorization.

7121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791233 (or 791230 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7121043 is about 2668.5282460562. The cubic root of 7121043 is about 192.3894277007.

It can be divided in two parts, 712104 and 3, that multiplied together give a palindrome (2136312).

The spelling of 7121043 in words is "seven million, one hundred twenty-one thousand, forty-three".