1945732073 has 2 divisors, whose sum is σ = 1945732074. Its totient is φ = 1945732072.

The previous prime is 1945732051. The next prime is 1945732111. The reversal of 1945732073 is 3702375491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1924313689 + 21418384 = 43867^2 + 4628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1945732073 - 2⁸ = 1945731817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1945732073.

It is not a weakly prime, because it can be changed into another prime (1945732013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972866036 + 972866037.

It is an arithmetic number, because the mean of its divisors is an integer number (972866037).

Almost surely, 2^1945732073 is an apocalyptic number.

It is an amenable number.

1945732073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945732073 is an equidigital number, since it uses as much as digits as its factorization.

1945732073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 1945732073 is about 44110.4531035445. The cubic root of 1945732073 is about 1248.4208481035.

The spelling of 1945732073 in words is "one billion, nine hundred forty-five million, seven hundred thirty-two thousand, seventy-three".