1233278741 has 2 divisors, whose sum is σ = 1233278742. Its totient is φ = 1233278740.

The previous prime is 1233278687. The next prime is 1233278777. The reversal of 1233278741 is 1478723321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 896703025 + 336575716 = 29945^2 + 18346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233278741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1233278695 and 1233278704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233278341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616639370 + 616639371.

It is an arithmetic number, because the mean of its divisors is an integer number (616639371).

Almost surely, 2^1233278741 is an apocalyptic number.

It is an amenable number.

1233278741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233278741 is an equidigital number, since it uses as much as digits as its factorization.

1233278741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 1233278741 is about 35118.0685829958. The cubic root of 1233278741 is about 1072.3924516923.

The spelling of 1233278741 in words is "one billion, two hundred thirty-three million, two hundred seventy-eight thousand, seven hundred forty-one".