1223054993 has 2 divisors, whose sum is σ = 1223054994. Its totient is φ = 1223054992.

The previous prime is 1223054983. The next prime is 1223055079. The reversal of 1223054993 is 3994503221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752295184 + 470759809 = 27428^2 + 21697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223054993 - 2⁶ = 1223054929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223054983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611527496 + 611527497.

It is an arithmetic number, because the mean of its divisors is an integer number (611527497).

Almost surely, 2^1223054993 is an apocalyptic number.

It is an amenable number.

1223054993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223054993 is an equidigital number, since it uses as much as digits as its factorization.

1223054993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1223054993 is about 34972.2031476428. The cubic root of 1223054993 is about 1069.4208858550.

The spelling of 1223054993 in words is "one billion, two hundred twenty-three million, fifty-four thousand, nine hundred ninety-three".