1267274117 has 2 divisors, whose sum is σ = 1267274118. Its totient is φ = 1267274116.

The previous prime is 1267274111. The next prime is 1267274137. The reversal of 1267274117 is 7114727621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046781316 + 220492801 = 32354^2 + 14849^2 .

It is a cyclic number.

It is not a de Polignac number, because 1267274117 - 2¹⁰ = 1267273093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267274111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633637058 + 633637059.

It is an arithmetic number, because the mean of its divisors is an integer number (633637059).

Almost surely, 2^1267274117 is an apocalyptic number.

It is an amenable number.

1267274117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267274117 is an equidigital number, since it uses as much as digits as its factorization.

1267274117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 38.

The square root of 1267274117 is about 35598.7937576542. The cubic root of 1267274117 is about 1082.1567887907.

The spelling of 1267274117 in words is "one billion, two hundred sixty-seven million, two hundred seventy-four thousand, one hundred seventeen".