45727949 has 2 divisors, whose sum is σ = 45727950. Its totient is φ = 45727948.

The previous prime is 45727931. The next prime is 45727987. The reversal of 45727949 is 94972754.

45727949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 3087049 = 6530^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 45727949 - 2¹⁶ = 45662413 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 (45727919) 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, 22863974 + 22863975.

It is an arithmetic number, because the mean of its divisors is an integer number (22863975).

Almost surely, 2^45727949 is an apocalyptic number.

It is an amenable number.

45727949 is a deficient number, since it is larger than the sum of its proper divisors (1).

45727949 is an equidigital number, since it uses as much as digits as its factorization.

45727949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 45727949 is about 6762.2443759450. The cubic root of 45727949 is about 357.5970336634.

It can be divided in two parts, 4572 and 7949, that added together give a palindrome (12521).

The spelling of 45727949 in words is "forty-five million, seven hundred twenty-seven thousand, nine hundred forty-nine".