2247656545 has 4 divisors (see below), whose sum is σ = 2697187860. Its totient is φ = 1798125232.

The previous prime is 2247656533. The next prime is 2247656573. The reversal of 2247656545 is 5456567422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 799701841 + 1447954704 = 28279^2 + 38052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2247656545 - 2⁷ = 2247656417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2247656495 and 2247656504.

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 3 ways as a sum of consecutive naturals, for example, 224765650 + ... + 224765659.

It is an arithmetic number, because the mean of its divisors is an integer number (674296965).

Almost surely, 2^2247656545 is an apocalyptic number.

It is an amenable number.

2247656545 is a deficient number, since it is larger than the sum of its proper divisors (449531315).

2247656545 is an equidigital number, since it uses as much as digits as its factorization.

2247656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449531314.

The product of its digits is 2016000, while the sum is 46.

The square root of 2247656545 is about 47409.4562824760. The cubic root of 2247656545 is about 1309.9156065129.

The spelling of 2247656545 in words is "two billion, two hundred forty-seven million, six hundred fifty-six thousand, five hundred forty-five".