1281524941 has 2 divisors, whose sum is σ = 1281524942. Its totient is φ = 1281524940.

The previous prime is 1281524929. The next prime is 1281524953. The reversal of 1281524941 is 1494251821.

It is a balanced prime because it is at equal distance from previous prime (1281524929) and next prime (1281524953).

It can be written as a sum of positive squares in only one way, i.e., 882684100 + 398840841 = 29710^2 + 19971^2 .

It is an emirp because it is prime and its reverse (1494251821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1281524941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1281524941.

It is a congruent number.

It is a weakly prime.

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, 640762470 + 640762471.

It is an arithmetic number, because the mean of its divisors is an integer number (640762471).

Almost surely, 2^1281524941 is an apocalyptic number.

It is an amenable number.

1281524941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1281524941 is an equidigital number, since it uses as much as digits as its factorization.

1281524941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 37.

The square root of 1281524941 is about 35798.3929946583. The cubic root of 1281524941 is about 1086.1980553871.

The spelling of 1281524941 in words is "one billion, two hundred eighty-one million, five hundred twenty-four thousand, nine hundred forty-one".