244135531205 has 4 divisors (see below), whose sum is σ = 292962637452. Its totient is φ = 195308424960.

The previous prime is 244135531201. The next prime is 244135531207. The reversal of 244135531205 is 502135531442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502135531442 = 2 ⋅251067765721.

It can be written as a sum of positive squares in 2 ways, for example, as 85003151809 + 159132379396 = 291553^2 + 398914^2 .

It is not a de Polignac number, because 244135531205 - 2² = 244135531201 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 (244135531201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24413553116 + ... + 24413553125.

It is an arithmetic number, because the mean of its divisors is an integer number (73240659363).

Almost surely, 2^244135531205 is an apocalyptic number.

It is an amenable number.

244135531205 is a deficient number, since it is larger than the sum of its proper divisors (48827106247).

244135531205 is an equidigital number, since it uses as much as digits as its factorization.

244135531205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48827106246.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 244135531205 in words is "two hundred forty-four billion, one hundred thirty-five million, five hundred thirty-one thousand, two hundred five".