6873090121 has 2 divisors, whose sum is σ = 6873090122. Its totient is φ = 6873090120.

The previous prime is 6873090113. The next prime is 6873090137. The reversal of 6873090121 is 1210903786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6799816521 + 73273600 = 82461^2 + 8560^2 .

It is a cyclic number.

It is not a de Polignac number, because 6873090121 - 2³ = 6873090113 is a prime.

It is a super-2 number, since 2×6873090121² = 94478735622775589282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6873090151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3436545060 + 3436545061.

It is an arithmetic number, because the mean of its divisors is an integer number (3436545061).

Almost surely, 2^6873090121 is an apocalyptic number.

It is an amenable number.

6873090121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6873090121 is an equidigital number, since it uses as much as digits as its factorization.

6873090121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 6873090121 is about 82904.1019552109. The cubic root of 6873090121 is about 1901.3001370057.

It can be divided in two parts, 68730 and 90121, that added together give a palindrome (158851).

The spelling of 6873090121 in words is "six billion, eight hundred seventy-three million, ninety thousand, one hundred twenty-one".