1206130646 has 16 divisors (see below), whose sum is σ = 2106666144. Its totient is φ = 507159744.

The previous prime is 1206130631. The next prime is 1206130663. The reversal of 1206130646 is 6460316021.

It is a happy number.

It is a super-2 number, since 2×1206130646² = 2909502270440754632, which contains 22 as substring.

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, 812015 + ... + 813498.

It is an arithmetic number, because the mean of its divisors is an integer number (131666634).

Almost surely, 2^1206130646 is an apocalyptic number.

1206130646 is a deficient number, since it is larger than the sum of its proper divisors (900535498).

1206130646 is a wasteful number, since it uses less digits than its factorization.

1206130646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625575.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1206130646 is about 34729.3916733363. The cubic root of 1206130646 is about 1064.4651582079.

Adding to 1206130646 its reverse (6460316021), we get a palindrome (7666446667).

The spelling of 1206130646 in words is "one billion, two hundred six million, one hundred thirty thousand, six hundred forty-six".