1267204423 has 8 divisors (see below), whose sum is σ = 1288543520. Its totient is φ = 1245883680.

The previous prime is 1267204417. The next prime is 1267204427. The reversal of 1267204423 is 3244027621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1267204423 - 2²⁹ = 730333511 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 (1267204427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273361 + ... + 277957.

It is an arithmetic number, because the mean of its divisors is an integer number (161067940).

Almost surely, 2^1267204423 is an apocalyptic number.

1267204423 is a deficient number, since it is larger than the sum of its proper divisors (21339097).

1267204423 is an equidigital number, since it uses as much as digits as its factorization.

1267204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1267204423 is about 35597.8148627131. The cubic root of 1267204423 is about 1082.1369506155.

The spelling of 1267204423 in words is "one billion, two hundred sixty-seven million, two hundred four thousand, four hundred twenty-three".