5394021121 has 2 divisors, whose sum is σ = 5394021122. Its totient is φ = 5394021120.

The previous prime is 5394021109. The next prime is 5394021161. The reversal of 5394021121 is 1211204935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3616218225 + 1777802896 = 60135^2 + 42164^2 .

It is a cyclic number.

It is not a de Polignac number, because 5394021121 - 2⁹ = 5394020609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5394021121.

It is not a weakly prime, because it can be changed into another prime (5394021161) 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 as a sum of consecutive naturals, namely, 2697010560 + 2697010561.

It is an arithmetic number, because the mean of its divisors is an integer number (2697010561).

Almost surely, 2^5394021121 is an apocalyptic number.

It is an amenable number.

5394021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5394021121 is an equidigital number, since it uses as much as digits as its factorization.

5394021121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 5394021121 is about 73443.9998978814. Note that the first 3 decimals coincide. The cubic root of 5394021121 is about 1753.7629094324.

The spelling of 5394021121 in words is "five billion, three hundred ninety-four million, twenty-one thousand, one hundred twenty-one".