1265484372 has 12 divisors (see below), whose sum is σ = 2952796896. Its totient is φ = 421828120.

The previous prime is 1265484361. The next prime is 1265484373. The reversal of 1265484372 is 2734845621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265484373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52728504 + ... + 52728527.

It is an arithmetic number, because the mean of its divisors is an integer number (246066408).

Almost surely, 2^1265484372 is an apocalyptic number.

1265484372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1265484372 is an abundant number, since it is smaller than the sum of its proper divisors (1687312524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265484372 is a wasteful number, since it uses less digits than its factorization.

1265484372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105457038 (or 105457036 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 1265484372 is about 35573.6471562869. The cubic root of 1265484372 is about 1081.6471129039.

The spelling of 1265484372 in words is "one billion, two hundred sixty-five million, four hundred eighty-four thousand, three hundred seventy-two".