45277861 has 2 divisors, whose sum is σ = 45277862. Its totient is φ = 45277860.

The previous prime is 45277853. The next prime is 45277927. The reversal of 45277861 is 16877254.

45277861 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., 27888961 + 17388900 = 5281^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 45277861 - 2³ = 45277853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45277261) 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, 22638930 + 22638931.

It is an arithmetic number, because the mean of its divisors is an integer number (22638931).

Almost surely, 2^45277861 is an apocalyptic number.

It is an amenable number.

45277861 is a deficient number, since it is larger than the sum of its proper divisors (1).

45277861 is an equidigital number, since it uses as much as digits as its factorization.

45277861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 45277861 is about 6728.8825966872. The cubic root of 45277861 is about 356.4199191056.

The spelling of 45277861 in words is "forty-five million, two hundred seventy-seven thousand, eight hundred sixty-one".