1267253463 has 16 divisors (see below), whose sum is σ = 1931874560. Its totient is φ = 723836736.

The previous prime is 1267253437. The next prime is 1267253497. The reversal of 1267253463 is 3643527621.

It is not a de Polignac number, because 1267253463 - 2¹⁰ = 1267252439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267253413) 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, 43428 + ... + 66486.

It is an arithmetic number, because the mean of its divisors is an integer number (120742160).

Almost surely, 2^1267253463 is an apocalyptic number.

1267253463 is a deficient number, since it is larger than the sum of its proper divisors (664621097).

1267253463 is a wasteful number, since it uses less digits than its factorization.

1267253463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25686.

The product of its digits is 181440, while the sum is 39.

The square root of 1267253463 is about 35598.5036623732. The cubic root of 1267253463 is about 1082.1509097712.

The spelling of 1267253463 in words is "one billion, two hundred sixty-seven million, two hundred fifty-three thousand, four hundred sixty-three".