1620033113 has 2 divisors, whose sum is σ = 1620033114. Its totient is φ = 1620033112.

The previous prime is 1620033109. The next prime is 1620033169. The reversal of 1620033113 is 3113300261.

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., 1548579904 + 71453209 = 39352^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1620033113 - 2² = 1620033109 is a prime.

It is not a weakly prime, because it can be changed into another prime (1620033193) 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, 810016556 + 810016557.

It is an arithmetic number, because the mean of its divisors is an integer number (810016557).

Almost surely, 2^1620033113 is an apocalyptic number.

It is an amenable number.

1620033113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1620033113 is an equidigital number, since it uses as much as digits as its factorization.

1620033113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1620033113 is about 40249.6349424439. The cubic root of 1620033113 is about 1174.4682943339.

Adding to 1620033113 its reverse (3113300261), we get a palindrome (4733333374).

The spelling of 1620033113 in words is "one billion, six hundred twenty million, thirty-three thousand, one hundred thirteen".