1206360645 has 48 divisors (see below), whose sum is σ = 2277030528. Its totient is φ = 543688320.

The previous prime is 1206360643. The next prime is 1206360679. The reversal of 1206360645 is 5460636021.

It is not a de Polignac number, because 1206360645 - 2¹ = 1206360643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206360641) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 40627 + ... + 63743.

It is an arithmetic number, because the mean of its divisors is an integer number (47438136).

Almost surely, 2^1206360645 is an apocalyptic number.

1206360645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206360645 is a deficient number, since it is larger than the sum of its proper divisors (1070669883).

1206360645 is a wasteful number, since it uses less digits than its factorization.

1206360645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23210 (or 23203 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1206360645 is about 34732.7028173737. The cubic root of 1206360645 is about 1064.5328154340.

Adding to 1206360645 its reverse (5460636021), we get a palindrome (6666996666).

The spelling of 1206360645 in words is "one billion, two hundred six million, three hundred sixty thousand, six hundred forty-five".