2242561639 has 2 divisors, whose sum is σ = 2242561640. Its totient is φ = 2242561638.

The previous prime is 2242561597. The next prime is 2242561693. The reversal of 2242561639 is 9361652422.

2242561639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (2242561693) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2242561639 - 2²¹ = 2240464487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242561439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121280819 + 1121280820.

It is an arithmetic number, because the mean of its divisors is an integer number (1121280820).

Almost surely, 2^2242561639 is an apocalyptic number.

2242561639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242561639 is an equidigital number, since it uses as much as digits as its factorization.

2242561639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 2242561639 is about 47355.6927834447. The cubic root of 2242561639 is about 1308.9251013912.

The spelling of 2242561639 in words is "two billion, two hundred forty-two million, five hundred sixty-one thousand, six hundred thirty-nine".