1608425149 has 2 divisors, whose sum is σ = 1608425150. Its totient is φ = 1608425148.

The previous prime is 1608425087. The next prime is 1608425171. The reversal of 1608425149 is 9415248061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1314062500 + 294362649 = 36250^2 + 17157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1608425149 - 2²¹ = 1606327997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608425179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804212574 + 804212575.

It is an arithmetic number, because the mean of its divisors is an integer number (804212575).

Almost surely, 2^1608425149 is an apocalyptic number.

It is an amenable number.

1608425149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608425149 is an equidigital number, since it uses as much as digits as its factorization.

1608425149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1608425149 is about 40105.1760873830. The cubic root of 1608425149 is about 1171.6564428147.

The spelling of 1608425149 in words is "one billion, six hundred eight million, four hundred twenty-five thousand, one hundred forty-nine".