45457091 has 2 divisors, whose sum is σ = 45457092. Its totient is φ = 45457090.

The previous prime is 45457079. The next prime is 45457109. The reversal of 45457091 is 19075454.

Together with next prime (45457109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45457091 - 2¹⁰ = 45456067 is a prime.

It is not a weakly prime, because it can be changed into another prime (45457001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22728545 + 22728546.

It is an arithmetic number, because the mean of its divisors is an integer number (22728546).

Almost surely, 2^45457091 is an apocalyptic number.

45457091 is a deficient number, since it is larger than the sum of its proper divisors (1).

45457091 is an equidigital number, since it uses as much as digits as its factorization.

45457091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 45457091 is about 6742.1874046929. The cubic root of 45457091 is about 356.8895896800.

The spelling of 45457091 in words is "forty-five million, four hundred fifty-seven thousand, ninety-one".