1207012161 has 16 divisors (see below), whose sum is σ = 1705455360. Its totient is φ = 757975680.

The previous prime is 1207012159. The next prime is 1207012171. The reversal of 1207012161 is 1612107021.

It is a happy number.

It is not a de Polignac number, because 1207012161 - 2¹ = 1207012159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1207012171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165625 + ... + 172758.

It is an arithmetic number, because the mean of its divisors is an integer number (106590960).

Almost surely, 2^1207012161 is an apocalyptic number.

It is an amenable number.

1207012161 is a deficient number, since it is larger than the sum of its proper divisors (498443199).

1207012161 is a wasteful number, since it uses less digits than its factorization.

1207012161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338456.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1207012161 is about 34742.0805508248. The cubic root of 1207012161 is about 1064.7244207513.

Adding to 1207012161 its reverse (1612107021), we get a palindrome (2819119182).

The spelling of 1207012161 in words is "one billion, two hundred seven million, twelve thousand, one hundred sixty-one".