2206978145 has 8 divisors (see below), whose sum is σ = 2648653440. Its totient is φ = 1765396080.

The previous prime is 2206978093. The next prime is 2206978153. The reversal of 2206978145 is 5418796022.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2206978145 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2206978096 and 2206978105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49400 + ... + 82790.

It is an arithmetic number, because the mean of its divisors is an integer number (331081680).

Almost surely, 2^2206978145 is an apocalyptic number.

It is an amenable number.

2206978145 is a deficient number, since it is larger than the sum of its proper divisors (441675295).

2206978145 is a wasteful number, since it uses less digits than its factorization.

2206978145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46615.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2206978145 is about 46978.4859802868. The cubic root of 2206978145 is about 1301.9651039528.

The spelling of 2206978145 in words is "two billion, two hundred six million, nine hundred seventy-eight thousand, one hundred forty-five".