1608061157 has 2 divisors, whose sum is σ = 1608061158. Its totient is φ = 1608061156.

The previous prime is 1608061121. The next prime is 1608061177. The reversal of 1608061157 is 7511608061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399807396 + 208253761 = 37414^2 + 14431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1608061157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608061177) 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, 804030578 + 804030579.

It is an arithmetic number, because the mean of its divisors is an integer number (804030579).

Almost surely, 2^1608061157 is an apocalyptic number.

It is an amenable number.

1608061157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608061157 is an equidigital number, since it uses as much as digits as its factorization.

1608061157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1608061157 is about 40100.6378627572. The cubic root of 1608061157 is about 1171.5680528873.

The spelling of 1608061157 in words is "one billion, six hundred eight million, sixty-one thousand, one hundred fifty-seven".