6450091 has 2 divisors, whose sum is σ = 6450092. Its totient is φ = 6450090.

The previous prime is 6450083. The next prime is 6450107. The reversal of 6450091 is 1900546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6450091 - 2³ = 6450083 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (6450011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225045 + 3225046.

It is an arithmetic number, because the mean of its divisors is an integer number (3225046).

Almost surely, 2^6450091 is an apocalyptic number.

6450091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6450091 is an equidigital number, since it uses as much as digits as its factorization.

6450091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6450091 is about 2539.7029353844. The cubic root of 6450091 is about 186.1466739166.

The spelling of 6450091 in words is "six million, four hundred fifty thousand, ninety-one".