1260001 has 4 divisors (see below), whose sum is σ = 1262272. Its totient is φ = 1257732.

The previous prime is 1259983. The next prime is 1260011. The reversal of 1260001 is 1000621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1260001 - 2⁷ = 1259873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1260001.

It is not an unprimeable number, because it can be changed into a prime (1260011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (315568).

2^1260001 is an apocalyptic number.

It is an amenable number.

1260001 is a deficient number, since it is larger than the sum of its proper divisors (2271).

1260001 is an equidigital number, since it uses as much as digits as its factorization.

1260001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1260001 is about 1122.4976614675. The cubic root of 1260001 is about 108.0082583991.

Adding to 1260001 its reverse (1000621), we get a palindrome (2260622).

The spelling of 1260001 in words is "one million, two hundred sixty thousand, one".