603345161 has 2 divisors, whose sum is σ = 603345162. Its totient is φ = 603345160.

The previous prime is 603345137. The next prime is 603345221. The reversal of 603345161 is 161543306.

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., 498405625 + 104939536 = 22325^2 + 10244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-603345161 is a prime.

It is not a weakly prime, because it can be changed into another prime (603345101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301672580 + 301672581.

It is an arithmetic number, because the mean of its divisors is an integer number (301672581).

Almost surely, 2^603345161 is an apocalyptic number.

It is an amenable number.

603345161 is a deficient number, since it is larger than the sum of its proper divisors (1).

603345161 is an equidigital number, since it uses as much as digits as its factorization.

603345161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 603345161 is about 24563.0853314481. The cubic root of 603345161 is about 844.9972157746.

Adding to 603345161 its reverse (161543306), we get a palindrome (764888467).

The spelling of 603345161 in words is "six hundred three million, three hundred forty-five thousand, one hundred sixty-one".