1206544645 has 8 divisors (see below), whose sum is σ = 1494558720. Its totient is φ = 934098960.

The previous prime is 1206544639. The next prime is 1206544663. The reversal of 1206544645 is 5464456021.

1206544645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1206544645 - 2³ = 1206544637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3891925 + ... + 3892234.

It is an arithmetic number, because the mean of its divisors is an integer number (186819840).

Almost surely, 2^1206544645 is an apocalyptic number.

It is an amenable number.

1206544645 is a deficient number, since it is larger than the sum of its proper divisors (288014075).

1206544645 is an equidigital number, since it uses as much as digits as its factorization.

1206544645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784195.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 1206544645 is about 34735.3515168625. The cubic root of 1206544645 is about 1064.5869352588.

The spelling of 1206544645 in words is "one billion, two hundred six million, five hundred forty-four thousand, six hundred forty-five".