1608001121 has 2 divisors, whose sum is σ = 1608001122. Its totient is φ = 1608001120.

The previous prime is 1608001069. The next prime is 1608001133. The reversal of 1608001121 is 1211008061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222271521 + 385729600 = 34961^2 + 19640^2 .

It is an emirp because it is prime and its reverse (1211008061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1608001121 - 2²² = 1603806817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1608001093 and 1608001102.

It is not a weakly prime, because it can be changed into another prime (1608003121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804000560 + 804000561.

It is an arithmetic number, because the mean of its divisors is an integer number (804000561).

Almost surely, 2^1608001121 is an apocalyptic number.

It is an amenable number.

1608001121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608001121 is an equidigital number, since it uses as much as digits as its factorization.

1608001121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 1608001121 is about 40099.8892891240. The cubic root of 1608001121 is about 1171.5534727753.

Adding to 1608001121 its reverse (1211008061), we get a palindrome (2819009182).

The spelling of 1608001121 in words is "one billion, six hundred eight million, one thousand, one hundred twenty-one".