1001613 has 4 divisors (see below), whose sum is σ = 1335488. Its totient is φ = 667740.

The previous prime is 1001593. The next prime is 1001621. The reversal of 1001613 is 3161001.

1001613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 1001613 - 2⁶ = 1001549 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166933 + ... + 166938.

It is an arithmetic number, because the mean of its divisors is an integer number (333872).

2^1001613 is an apocalyptic number.

It is an amenable number.

1001613 is a deficient number, since it is larger than the sum of its proper divisors (333875).

1001613 is an equidigital number, since it uses as much as digits as its factorization.

1001613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333874.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1001613 is about 1000.8061750409. The cubic root of 1001613 is about 100.0537377840.

Adding to 1001613 its reverse (3161001), we get a palindrome (4162614).

The spelling of 1001613 in words is "one million, one thousand, six hundred thirteen".