6457109 has 2 divisors, whose sum is σ = 6457110. Its totient is φ = 6457108.

The previous prime is 6457097. The next prime is 6457123. The reversal of 6457109 is 9017546.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4558225 + 1898884 = 2135^2 + 1378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6457109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6450109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228554 + 3228555.

It is an arithmetic number, because the mean of its divisors is an integer number (3228555).

Almost surely, 2^6457109 is an apocalyptic number.

It is an amenable number.

6457109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457109 is an equidigital number, since it uses as much as digits as its factorization.

6457109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 6457109 is about 2541.0842174159. The cubic root of 6457109 is about 186.2141615352.

The spelling of 6457109 in words is "six million, four hundred fifty-seven thousand, one hundred nine".