45808949 has 2 divisors, whose sum is σ = 45808950. Its totient is φ = 45808948.

The previous prime is 45808937. The next prime is 45808963. The reversal of 45808949 is 94980854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 2380849 = 6590^2 + 1543^2 .

It is a cyclic number.

It is not a de Polignac number, because 45808949 - 2⁴ = 45808933 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 (45808969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22904474 + 22904475.

It is an arithmetic number, because the mean of its divisors is an integer number (22904475).

Almost surely, 2^45808949 is an apocalyptic number.

It is an amenable number.

45808949 is a deficient number, since it is larger than the sum of its proper divisors (1).

45808949 is an equidigital number, since it uses as much as digits as its factorization.

45808949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 45808949 is about 6768.2308619018. The cubic root of 45808949 is about 357.8080517578.

The spelling of 45808949 in words is "forty-five million, eight hundred eight thousand, nine hundred forty-nine".