6451189 has 2 divisors, whose sum is σ = 6451190. Its totient is φ = 6451188.

The previous prime is 6451187. The next prime is 6451217. The reversal of 6451189 is 9811546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 24964 = 2535^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 6451189 - 2¹ = 6451187 is a prime.

Together with 6451187, it forms a pair of twin primes.

It is an Ulam number.

6451189 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6451183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225594 + 3225595.

It is an arithmetic number, because the mean of its divisors is an integer number (3225595).

Almost surely, 2^6451189 is an apocalyptic number.

It is an amenable number.

6451189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6451189 is an equidigital number, since it uses as much as digits as its factorization.

6451189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 6451189 is about 2539.9190931996. The cubic root of 6451189 is about 186.1572359098.

The spelling of 6451189 in words is "six million, four hundred fifty-one thousand, one hundred eighty-nine".