1220573743 has 2 divisors, whose sum is σ = 1220573744. Its totient is φ = 1220573742.

The previous prime is 1220573719. The next prime is 1220573747. The reversal of 1220573743 is 3473750221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220573743 - 2⁹ = 1220573231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220573699 and 1220573708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220573747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610286871 + 610286872.

It is an arithmetic number, because the mean of its divisors is an integer number (610286872).

Almost surely, 2^1220573743 is an apocalyptic number.

1220573743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220573743 is an equidigital number, since it uses as much as digits as its factorization.

1220573743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 1220573743 is about 34936.7105349087. The cubic root of 1220573743 is about 1068.6972070271.

The spelling of 1220573743 in words is "one billion, two hundred twenty million, five hundred seventy-three thousand, seven hundred forty-three".