1265249848 has 8 divisors (see below), whose sum is σ = 2372343480. Its totient is φ = 632624920.

The previous prime is 1265249833. The next prime is 1265249857. The reversal of 1265249848 is 8489425621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79078108 + ... + 79078123.

It is an arithmetic number, because the mean of its divisors is an integer number (296542935).

Almost surely, 2^1265249848 is an apocalyptic number.

It is an amenable number.

1265249848 is a deficient number, since it is larger than the sum of its proper divisors (1107093632).

1265249848 is a wasteful number, since it uses less digits than its factorization.

1265249848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158156237 (or 158156233 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 1265249848 is about 35570.3506870540. The cubic root of 1265249848 is about 1081.5802905642.

It can be divided in two parts, 12652 and 49848, that added together give a square (62500 = 250²).

The spelling of 1265249848 in words is "one billion, two hundred sixty-five million, two hundred forty-nine thousand, eight hundred forty-eight".