2001413 has 2 divisors, whose sum is σ = 2001414. Its totient is φ = 2001412.

The previous prime is 2001409. The next prime is 2001421. The reversal of 2001413 is 3141002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 850084 = 1073^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001413 - 2² = 2001409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001394 and 2001403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000706 + 1000707.

It is an arithmetic number, because the mean of its divisors is an integer number (1000707).

2^2001413 is an apocalyptic number.

It is an amenable number.

2001413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001413 is an equidigital number, since it uses as much as digits as its factorization.

2001413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2001413 is about 1414.7130451084. The cubic root of 2001413 is about 126.0217691454.

Adding to 2001413 its reverse (3141002), we get a palindrome (5142415).

The spelling of 2001413 in words is "two million, one thousand, four hundred thirteen".