1608513479 has 2 divisors, whose sum is σ = 1608513480. Its totient is φ = 1608513478.

The previous prime is 1608513443. The next prime is 1608513539. The reversal of 1608513479 is 9743158061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1608513479 - 2⁸ = 1608513223 is a prime.

It is a super-2 number, since 2×1608513479² = 5174631224249366882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608513079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804256739 + 804256740.

It is an arithmetic number, because the mean of its divisors is an integer number (804256740).

Almost surely, 2^1608513479 is an apocalyptic number.

1608513479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608513479 is an equidigital number, since it uses as much as digits as its factorization.

1608513479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1608513479 is about 40106.2773016893. The cubic root of 1608513479 is about 1171.6778904026.

The spelling of 1608513479 in words is "one billion, six hundred eight million, five hundred thirteen thousand, four hundred seventy-nine".