45142861 has 2 divisors, whose sum is σ = 45142862. Its totient is φ = 45142860.

The previous prime is 45142843. The next prime is 45142873. The reversal of 45142861 is 16824154.

45142861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25694761 + 19448100 = 5069^2 + 4410^2 .

It is a cyclic number.

It is not a de Polignac number, because 45142861 - 2⁵ = 45142829 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 (45142661) 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, 22571430 + 22571431.

It is an arithmetic number, because the mean of its divisors is an integer number (22571431).

Almost surely, 2^45142861 is an apocalyptic number.

It is an amenable number.

45142861 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142861 is an equidigital number, since it uses as much as digits as its factorization.

45142861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 45142861 is about 6718.8437249277. The cubic root of 45142861 is about 356.0653338198.

The spelling of 45142861 in words is "forty-five million, one hundred forty-two thousand, eight hundred sixty-one".