1280101 has 2 divisors, whose sum is σ = 1280102. Its totient is φ = 1280100.

The previous prime is 1280023. The next prime is 1280107. The reversal of 1280101 is 1010821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 950625 + 329476 = 975^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280101 - 2¹⁹ = 755813 is a prime.

1280101 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1280107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640050 + 640051.

It is an arithmetic number, because the mean of its divisors is an integer number (640051).

2^1280101 is an apocalyptic number.

It is an amenable number.

1280101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280101 is an equidigital number, since it uses as much as digits as its factorization.

1280101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1280101 is about 1131.4154851336. The cubic root of 1280101 is about 108.5795603822.

Adding to 1280101 its reverse (1010821), we get a palindrome (2290922).

The spelling of 1280101 in words is "one million, two hundred eighty thousand, one hundred one".