1265036441 has 2 divisors, whose sum is σ = 1265036442. Its totient is φ = 1265036440.

The previous prime is 1265036431. The next prime is 1265036467. The reversal of 1265036441 is 1446305621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 856147600 + 408888841 = 29260^2 + 20221^2 .

It is an emirp because it is prime and its reverse (1446305621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265036441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1265036398 and 1265036407.

It is not a weakly prime, because it can be changed into another prime (1265036431) 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, 632518220 + 632518221.

It is an arithmetic number, because the mean of its divisors is an integer number (632518221).

Almost surely, 2^1265036441 is an apocalyptic number.

It is an amenable number.

1265036441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265036441 is an equidigital number, since it uses as much as digits as its factorization.

1265036441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1265036441 is about 35567.3507728647. The cubic root of 1265036441 is about 1081.5194778629.

The spelling of 1265036441 in words is "one billion, two hundred sixty-five million, thirty-six thousand, four hundred forty-one".