244145131 has 4 divisors (see below), whose sum is σ = 244251072. Its totient is φ = 244039192.

The previous prime is 244145087. The next prime is 244145137. The reversal of 244145131 is 131541442.

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 244145131 - 2⁹ = 244144619 is a prime.

It is a super-2 number, since 2×244145131² = 119213689982014322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244145096 and 244145105.

It is not an unprimeable number, because it can be changed into a prime (244145137) 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, 49435 + ... + 54148.

It is an arithmetic number, because the mean of its divisors is an integer number (61062768).

Almost surely, 2^244145131 is an apocalyptic number.

244145131 is a deficient number, since it is larger than the sum of its proper divisors (105941).

244145131 is a wasteful number, since it uses less digits than its factorization.

244145131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105940.

The product of its digits is 1920, while the sum is 25.

The square root of 244145131 is about 15625.1441913347. The cubic root of 244145131 is about 625.0038450963.

Adding to 244145131 its reverse (131541442), we get a palindrome (375686573).

The spelling of 244145131 in words is "two hundred forty-four million, one hundred forty-five thousand, one hundred thirty-one".