1265632841 has 16 divisors (see below), whose sum is σ = 1419655680. Its totient is φ = 1118177280.

The previous prime is 1265632829. The next prime is 1265632843. The reversal of 1265632841 is 1482365621.

It is a de Polignac number, because none of the positive numbers 2^k-1265632841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1265632795 and 1265632804.

It is not an unprimeable number, because it can be changed into a prime (1265632843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572360 + ... + 574566.

It is an arithmetic number, because the mean of its divisors is an integer number (88728480).

Almost surely, 2^1265632841 is an apocalyptic number.

1265632841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1265632841 is a deficient number, since it is larger than the sum of its proper divisors (154022839).

1265632841 is a wasteful number, since it uses less digits than its factorization.

1265632841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664.

The product of its digits is 69120, while the sum is 38.

The square root of 1265632841 is about 35575.7338785864. The cubic root of 1265632841 is about 1081.6894115391.

The spelling of 1265632841 in words is "one billion, two hundred sixty-five million, six hundred thirty-two thousand, eight hundred forty-one".