1267107007249 has 2 divisors, whose sum is σ = 1267107007250. Its totient is φ = 1267107007248.

The previous prime is 1267107007181. The next prime is 1267107007333. The reversal of 1267107007249 is 9427007017621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 868005262224 + 399101745025 = 931668^2 + 631745^2 .

It is an emirp because it is prime and its reverse (9427007017621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1267107007249 - 2⁷ = 1267107007121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1267107007199 and 1267107007208.

It is not a weakly prime, because it can be changed into another prime (1267107007949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633553503624 + 633553503625.

It is an arithmetic number, because the mean of its divisors is an integer number (633553503625).

Almost surely, 2^{1267107007249} is an apocalyptic number.

It is an amenable number.

1267107007249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267107007249 is an equidigital number, since it uses as much as digits as its factorization.

1267107007249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 1267107007249 in words is "one trillion, two hundred sixty-seven billion, one hundred seven million, seven thousand, two hundred forty-nine".