1269901 has 2 divisors, whose sum is σ = 1269902. Its totient is φ = 1269900.

The previous prime is 1269871. The next prime is 1269907. The reversal of 1269901 is 1099621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1267876 + 2025 = 1126^2 + 45^2 .

It is an emirp because it is prime and its reverse (1099621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1269901 - 2⁵ = 1269869 is a prime.

It is a super-2 number, since 2×1269901² = 3225297099602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1269901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1269907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634950 + 634951.

It is an arithmetic number, because the mean of its divisors is an integer number (634951).

2^1269901 is an apocalyptic number.

It is an amenable number.

1269901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269901 is an equidigital number, since it uses as much as digits as its factorization.

1269901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1269901 is about 1126.8988419552. The cubic root of 1269901 is about 108.2903992919.

The spelling of 1269901 in words is "one million, two hundred sixty-nine thousand, nine hundred one".