160987609 has 2 divisors, whose sum is σ = 160987610. Its totient is φ = 160987608.

The previous prime is 160987591. The next prime is 160987621. The reversal of 160987609 is 906789061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160782400 + 205209 = 12680^2 + 453^2 .

It is a cyclic number.

It is not a de Polignac number, because 160987609 - 2¹⁵ = 160954841 is a prime.

It is not a weakly prime, because it can be changed into another prime (160987679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80493804 + 80493805.

It is an arithmetic number, because the mean of its divisors is an integer number (80493805).

Almost surely, 2^160987609 is an apocalyptic number.

It is an amenable number.

160987609 is a deficient number, since it is larger than the sum of its proper divisors (1).

160987609 is an equidigital number, since it uses as much as digits as its factorization.

160987609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 160987609 is about 12688.0892572523. The cubic root of 160987609 is about 543.9982259620.

It can be divided in two parts, 160987 and 609, that added together give a triangular number (161596 = T₅₆₈).

The spelling of 160987609 in words is "one hundred sixty million, nine hundred eighty-seven thousand, six hundred nine".