1206813158 has 16 divisors (see below), whose sum is σ = 1906437120. Its totient is φ = 571365576.

The previous prime is 1206813149. The next prime is 1206813161. The reversal of 1206813158 is 8513186021.

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, 83891 + ... + 97217.

It is an arithmetic number, because the mean of its divisors is an integer number (119152320).

Almost surely, 2^1206813158 is an apocalyptic number.

1206813158 is a deficient number, since it is larger than the sum of its proper divisors (699623962).

1206813158 is a wasteful number, since it uses less digits than its factorization.

1206813158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15731.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1206813158 is about 34739.2164275477. The cubic root of 1206813158 is about 1064.6659029760.

Adding to 1206813158 its reverse (8513186021), we get a palindrome (9719999179).

The spelling of 1206813158 in words is "one billion, two hundred six million, eight hundred thirteen thousand, one hundred fifty-eight".