1212746441 has 2 divisors, whose sum is σ = 1212746442. Its totient is φ = 1212746440.

The previous prime is 1212746417. The next prime is 1212746473. The reversal of 1212746441 is 1446472121.

It is an a-pointer prime, because the next prime (1212746473) can be obtained adding 1212746441 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1211318416 + 1428025 = 34804^2 + 1195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212746441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212746398 and 1212746407.

It is not a weakly prime, because it can be changed into another prime (1212746401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606373220 + 606373221.

It is an arithmetic number, because the mean of its divisors is an integer number (606373221).

Almost surely, 2^1212746441 is an apocalyptic number.

It is an amenable number.

1212746441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212746441 is an equidigital number, since it uses as much as digits as its factorization.

1212746441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 32.

The square root of 1212746441 is about 34824.5091997001. The cubic root of 1212746441 is about 1066.4078572070.

The spelling of 1212746441 in words is "one billion, two hundred twelve million, seven hundred forty-six thousand, four hundred forty-one".