1206161005 has 8 divisors (see below), whose sum is σ = 1654163712. Its totient is φ = 827081808.

The previous prime is 1206160997. The next prime is 1206161053. The reversal of 1206161005 is 5001616021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1206161005 - 2³ = 1206160997 is a prime.

It is a super-2 number, since 2×1206161005² = 2909648739965220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 17230837 + ... + 17230906.

It is an arithmetic number, because the mean of its divisors is an integer number (206770464).

Almost surely, 2^1206161005 is an apocalyptic number.

It is an amenable number.

1206161005 is a deficient number, since it is larger than the sum of its proper divisors (448002707).

1206161005 is an equidigital number, since it uses as much as digits as its factorization.

1206161005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34461755.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1206161005 is about 34729.8287499377. The cubic root of 1206161005 is about 1064.4740891991.

Adding to 1206161005 its reverse (5001616021), we get a palindrome (6207777026).

The spelling of 1206161005 in words is "one billion, two hundred six million, one hundred sixty-one thousand, five".