1002601 has 4 divisors (see below), whose sum is σ = 1021572. Its totient is φ = 983632.

The previous prime is 1002583. The next prime is 1002619. The reversal of 1002601 is 1062001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1002583) and next prime (1002619).

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 235225 = 876^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002601 - 2⁵ = 1002569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002101) 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, 9406 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (255393).

2^1002601 is an apocalyptic number.

It is an amenable number.

1002601 is a deficient number, since it is larger than the sum of its proper divisors (18971).

1002601 is an equidigital number, since it uses as much as digits as its factorization.

1002601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18970.

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

The square root of 1002601 is about 1001.2996554479. The cubic root of 1002601 is about 100.0866249395.

Adding to 1002601 its reverse (1062001), we get a palindrome (2064602).

It can be divided in two parts, 100 and 2601, that multiplied together give a square (260100 = 510²).

The spelling of 1002601 in words is "one million, two thousand, six hundred one".