1600135321 has 2 divisors, whose sum is σ = 1600135322. Its totient is φ = 1600135320.

The previous prime is 1600135309. The next prime is 1600135333. The reversal of 1600135321 is 1235310061.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1600135309) and next prime (1600135333).

It can be written as a sum of positive squares in only one way, i.e., 1498851225 + 101284096 = 38715^2 + 10064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600135321 - 2⁵ = 1600135289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1600135292 and 1600135301.

It is not a weakly prime, because it can be changed into another prime (1600132321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800067660 + 800067661.

It is an arithmetic number, because the mean of its divisors is an integer number (800067661).

Almost surely, 2^1600135321 is an apocalyptic number.

It is an amenable number.

1600135321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600135321 is an equidigital number, since it uses as much as digits as its factorization.

1600135321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1600135321 is about 40001.6914767363. The cubic root of 1600135321 is about 1169.6400677726.

Adding to 1600135321 its reverse (1235310061), we get a palindrome (2835445382).

The spelling of 1600135321 in words is "one billion, six hundred million, one hundred thirty-five thousand, three hundred twenty-one".