1267313327 has 4 divisors (see below), whose sum is σ = 1448358096. Its totient is φ = 1086268560.

The previous prime is 1267313323. The next prime is 1267313353. The reversal of 1267313327 is 7233137621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1267313327 - 2² = 1267313323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267313323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90522374 + ... + 90522387.

It is an arithmetic number, because the mean of its divisors is an integer number (362089524).

Almost surely, 2^1267313327 is an apocalyptic number.

1267313327 is a deficient number, since it is larger than the sum of its proper divisors (181044769).

1267313327 is an equidigital number, since it uses as much as digits as its factorization.

1267313327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181044768.

The product of its digits is 31752, while the sum is 35.

The square root of 1267313327 is about 35599.3444743018. The cubic root of 1267313327 is about 1082.1679494727.

The spelling of 1267313327 in words is "one billion, two hundred sixty-seven million, three hundred thirteen thousand, three hundred twenty-seven".