1945633343 has 2 divisors, whose sum is σ = 1945633344. Its totient is φ = 1945633342.

The previous prime is 1945633337. The next prime is 1945633367. The reversal of 1945633343 is 3433365491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1945633343 - 2⁸ = 1945633087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1945633343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1945633373) 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, 972816671 + 972816672.

It is an arithmetic number, because the mean of its divisors is an integer number (972816672).

Almost surely, 2^1945633343 is an apocalyptic number.

1945633343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945633343 is an equidigital number, since it uses as much as digits as its factorization.

1945633343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 41.

The square root of 1945633343 is about 44109.3339668601. Note that the first 3 decimals coincide. The cubic root of 1945633343 is about 1248.3997320282.

The spelling of 1945633343 in words is "one billion, nine hundred forty-five million, six hundred thirty-three thousand, three hundred forty-three".