1265480047 has 64 divisors (see below), whose sum is σ = 1580544000. Its totient is φ = 1001548800.

The previous prime is 1265480011. The next prime is 1265480057. The reversal of 1265480047 is 7400845621.

It is a cyclic number.

It is not a de Polignac number, because 1265480047 - 2¹⁵ = 1265447279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265479988 and 1265480015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265480057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9104104 + ... + 9104242.

It is an arithmetic number, because the mean of its divisors is an integer number (24696000).

Almost surely, 2^1265480047 is an apocalyptic number.

1265480047 is a deficient number, since it is larger than the sum of its proper divisors (315063953).

1265480047 is a wasteful number, since it uses less digits than its factorization.

1265480047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1265480047 is about 35573.5863668537. The cubic root of 1265480047 is about 1081.6458806671.

The spelling of 1265480047 in words is "one billion, two hundred sixty-five million, four hundred eighty thousand, forty-seven".