1601602213 has 2 divisors, whose sum is σ = 1601602214. Its totient is φ = 1601602212.

The previous prime is 1601602193. The next prime is 1601602243. The reversal of 1601602213 is 3122061061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1391439204 + 210163009 = 37302^2 + 14497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601602213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601602243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800801106 + 800801107.

It is an arithmetic number, because the mean of its divisors is an integer number (800801107).

Almost surely, 2^1601602213 is an apocalyptic number.

It is an amenable number.

1601602213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601602213 is an equidigital number, since it uses as much as digits as its factorization.

1601602213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1601602213 is about 40020.0226511680. The cubic root of 1601602213 is about 1169.9973733109.

Adding to 1601602213 its reverse (3122061061), we get a palindrome (4723663274).

The spelling of 1601602213 in words is "one billion, six hundred one million, six hundred two thousand, two hundred thirteen".