1262532641 has 2 divisors, whose sum is σ = 1262532642. Its totient is φ = 1262532640.

The previous prime is 1262532631. The next prime is 1262532707. The reversal of 1262532641 is 1462352621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 772840000 + 489692641 = 27800^2 + 22129^2 .

It is an emirp because it is prime and its reverse (1462352621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1262532641 - 2¹⁸ = 1262270497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1262532598 and 1262532607.

It is not a weakly prime, because it can be changed into another prime (1262532631) 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, 631266320 + 631266321.

It is an arithmetic number, because the mean of its divisors is an integer number (631266321).

Almost surely, 2^1262532641 is an apocalyptic number.

It is an amenable number.

1262532641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262532641 is an equidigital number, since it uses as much as digits as its factorization.

1262532641 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1262532641 is about 35532.1353284601. The cubic root of 1262532641 is about 1080.8054807864.

The spelling of 1262532641 in words is "one billion, two hundred sixty-two million, five hundred thirty-two thousand, six hundred forty-one".