244200139 has 8 divisors (see below), whose sum is σ = 253045760. Its totient is φ = 235498536.

The previous prime is 244200137. The next prime is 244200149. The reversal of 244200139 is 931002442.

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

It is a cyclic number.

It is not a de Polignac number, because 244200139 - 2¹ = 244200137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244200133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32547 + ... + 39340.

It is an arithmetic number, because the mean of its divisors is an integer number (31630720).

Almost surely, 2^244200139 is an apocalyptic number.

244200139 is a deficient number, since it is larger than the sum of its proper divisors (8845621).

244200139 is an equidigital number, since it uses as much as digits as its factorization.

244200139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72009.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 244200139 is about 15626.9043319526. The cubic root of 244200139 is about 625.0507811539.

The spelling of 244200139 in words is "two hundred forty-four million, two hundred thousand, one hundred thirty-nine".