2245647637 has 4 divisors (see below), whose sum is σ = 2246006380. Its totient is φ = 2245288896.

The previous prime is 2245647631. The next prime is 2245647641. The reversal of 2245647637 is 7367465422.

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 1161855396 + 1083792241 = 34086^2 + 32921^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245647637 - 2¹⁵ = 2245614869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245647631) 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 3 ways as a sum of consecutive naturals, for example, 169812 + ... + 182557.

It is an arithmetic number, because the mean of its divisors is an integer number (561501595).

Almost surely, 2^2245647637 is an apocalyptic number.

It is an amenable number.

2245647637 is a deficient number, since it is larger than the sum of its proper divisors (358743).

2245647637 is an equidigital number, since it uses as much as digits as its factorization.

2245647637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358742.

The product of its digits is 1693440, while the sum is 46.

The square root of 2245647637 is about 47388.2647603813. The cubic root of 2245647637 is about 1309.5252318758.

The spelling of 2245647637 in words is "two billion, two hundred forty-five million, six hundred forty-seven thousand, six hundred thirty-seven".