1245802223 has 2 divisors, whose sum is σ = 1245802224. Its totient is φ = 1245802222.

The previous prime is 1245802219. The next prime is 1245802249. The reversal of 1245802223 is 3222085421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245802223 - 2² = 1245802219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245802123) 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, 622901111 + 622901112.

It is an arithmetic number, because the mean of its divisors is an integer number (622901112).

Almost surely, 2^1245802223 is an apocalyptic number.

1245802223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245802223 is an equidigital number, since it uses as much as digits as its factorization.

1245802223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1245802223 is about 35295.9236031585. The cubic root of 1245802223 is about 1076.0101478086.

Adding to 1245802223 its reverse (3222085421), we get a palindrome (4467887644).

The spelling of 1245802223 in words is "one billion, two hundred forty-five million, eight hundred two thousand, two hundred twenty-three".