45142673 has 2 divisors, whose sum is σ = 45142674. Its totient is φ = 45142672.

The previous prime is 45142661. The next prime is 45142703. The reversal of 45142673 is 37624154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24285184 + 20857489 = 4928^2 + 4567^2 .

It is a cyclic number.

It is not a de Polignac number, because 45142673 - 2⁶ = 45142609 is a prime.

It is not a weakly prime, because it can be changed into another prime (45142873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571336 + 22571337.

It is an arithmetic number, because the mean of its divisors is an integer number (22571337).

Almost surely, 2^45142673 is an apocalyptic number.

It is an amenable number.

45142673 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142673 is an equidigital number, since it uses as much as digits as its factorization.

45142673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 45142673 is about 6718.8297344106. The cubic root of 45142673 is about 356.0648395344.

The spelling of 45142673 in words is "forty-five million, one hundred forty-two thousand, six hundred seventy-three".