161060985 has 12 divisors (see below), whose sum is σ = 279172452. Its totient is φ = 85899168.

The previous prime is 161060971. The next prime is 161060989. The reversal of 161060985 is 589060161.

161060985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 138933369 = 4704^2 + 11787^2 .

It is not a de Polignac number, because 161060985 - 2⁴ = 161060969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161060989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1789522 + ... + 1789611.

It is an arithmetic number, because the mean of its divisors is an integer number (23264371).

Almost surely, 2^161060985 is an apocalyptic number.

161060985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161060985 is a deficient number, since it is larger than the sum of its proper divisors (118111467).

161060985 is a wasteful number, since it uses less digits than its factorization.

161060985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579144 (or 3579141 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 161060985 is about 12690.9804585777. The cubic root of 161060985 is about 544.0808624480.

The spelling of 161060985 in words is "one hundred sixty-one million, sixty thousand, nine hundred eighty-five".