45390242143 has 2 divisors, whose sum is σ = 45390242144. Its totient is φ = 45390242142.

The previous prime is 45390242123. The next prime is 45390242207. The reversal of 45390242143 is 34124209354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45390242143 - 2¹⁷ = 45390111071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45390242123) 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, 22695121071 + 22695121072.

It is an arithmetic number, because the mean of its divisors is an integer number (22695121072).

Almost surely, 2^45390242143 is an apocalyptic number.

45390242143 is a deficient number, since it is larger than the sum of its proper divisors (1).

45390242143 is an equidigital number, since it uses as much as digits as its factorization.

45390242143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 45390242143 in words is "forty-five billion, three hundred ninety million, two hundred forty-two thousand, one hundred forty-three".