1223836741 has 2 divisors, whose sum is σ = 1223836742. Its totient is φ = 1223836740.

The previous prime is 1223836709. The next prime is 1223836781. The reversal of 1223836741 is 1476383221.

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., 1001975716 + 221861025 = 31654^2 + 14895^2 .

It is an emirp because it is prime and its reverse (1476383221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223836741 - 2⁵ = 1223836709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223836741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223836781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611918370 + 611918371.

It is an arithmetic number, because the mean of its divisors is an integer number (611918371).

Almost surely, 2^1223836741 is an apocalyptic number.

It is an amenable number.

1223836741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223836741 is an equidigital number, since it uses as much as digits as its factorization.

1223836741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 1223836741 is about 34983.3780673050. The cubic root of 1223836741 is about 1069.6486868903.

The spelling of 1223836741 in words is "one billion, two hundred twenty-three million, eight hundred thirty-six thousand, seven hundred forty-one".