6495121 has 2 divisors, whose sum is σ = 6495122. Its totient is φ = 6495120.

The previous prime is 6495109. The next prime is 6495157. The reversal of 6495121 is 1215946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4260096 + 2235025 = 2064^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6495121 - 2¹¹ = 6493073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6495121.

It is not a weakly prime, because it can be changed into another prime (6495421) 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, 3247560 + 3247561.

It is an arithmetic number, because the mean of its divisors is an integer number (3247561).

Almost surely, 2^6495121 is an apocalyptic number.

It is an amenable number.

6495121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6495121 is an equidigital number, since it uses as much as digits as its factorization.

6495121 is an odious number, because the sum of its binary digits is odd.

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

The square root of 6495121 is about 2548.5527265489. The cubic root of 6495121 is about 186.5788514811.

The spelling of 6495121 in words is "six million, four hundred ninety-five thousand, one hundred twenty-one".