1606003001 has 4 divisors (see below), whose sum is σ = 1643351952. Its totient is φ = 1568654052.

The previous prime is 1606002997. The next prime is 1606003013. The reversal of 1606003001 is 1003006061.

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 1606003001 - 2² = 1606002997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606003051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18674411 + ... + 18674496.

It is an arithmetic number, because the mean of its divisors is an integer number (410837988).

Almost surely, 2^1606003001 is an apocalyptic number.

It is an amenable number.

1606003001 is a deficient number, since it is larger than the sum of its proper divisors (37348951).

1606003001 is an equidigital number, since it uses as much as digits as its factorization.

1606003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37348950.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1606003001 is about 40074.9672613715. The cubic root of 1606003001 is about 1171.0680098662.

Adding to 1606003001 its reverse (1003006061), we get a palindrome (2609009062).

The spelling of 1606003001 in words is "one billion, six hundred six million, three thousand, one".