1269372673 has 2 divisors, whose sum is σ = 1269372674. Its totient is φ = 1269372672.

The previous prime is 1269372661. The next prime is 1269372697. The reversal of 1269372673 is 3762739621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1268998129 + 374544 = 35623^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 1269372673 - 2¹⁷ = 1269241601 is a prime.

It is a super-2 number, since 2×1269372673² = 3222613965918329858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1269372613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634686336 + 634686337.

It is an arithmetic number, because the mean of its divisors is an integer number (634686337).

Almost surely, 2^1269372673 is an apocalyptic number.

It is an amenable number.

1269372673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269372673 is an equidigital number, since it uses as much as digits as its factorization.

1269372673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 46.

The square root of 1269372673 is about 35628.2566651808. The cubic root of 1269372673 is about 1082.7537957049.

The spelling of 1269372673 in words is "one billion, two hundred sixty-nine million, three hundred seventy-two thousand, six hundred seventy-three".