244140131 has 4 divisors (see below), whose sum is σ = 244364592. Its totient is φ = 243915672.

The previous prime is 244140119. The next prime is 244140151. The reversal of 244140131 is 131041442.

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

It is a cyclic number.

It is not a de Polignac number, because 244140131 - 2¹⁰ = 244139107 is a prime.

It is a super-2 number, since 2×244140131² = 119208807129394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244140151) by changing a digit.

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, 110591 + ... + 112776.

It is an arithmetic number, because the mean of its divisors is an integer number (61091148).

Almost surely, 2^244140131 is an apocalyptic number.

244140131 is a deficient number, since it is larger than the sum of its proper divisors (224461).

244140131 is a wasteful number, since it uses less digits than its factorization.

244140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224460.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 244140131 is about 15624.9841919920. The cubic root of 244140131 is about 624.9995784530. Note that the first 3 decimals are identical.

Adding to 244140131 its reverse (131041442), we get a palindrome (375181573).

The spelling of 244140131 in words is "two hundred forty-four million, one hundred forty thousand, one hundred thirty-one".