244163131 has 4 divisors (see below), whose sum is σ = 245441664. Its totient is φ = 242884600.

The previous prime is 244163123. The next prime is 244163137. The reversal of 244163131 is 131361442.

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 244163131 - 2³ = 244163123 is a prime.

It is a super-2 number, since 2×244163131² = 119231269079446322, 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 = 244163096 and 244163105.

It is not an unprimeable number, because it can be changed into a prime (244163137) 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, 638980 + ... + 639361.

It is an arithmetic number, because the mean of its divisors is an integer number (61360416).

Almost surely, 2^244163131 is an apocalyptic number.

244163131 is a deficient number, since it is larger than the sum of its proper divisors (1278533).

244163131 is a wasteful number, since it uses less digits than its factorization.

244163131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278532.

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

The square root of 244163131 is about 15625.7201754031. The cubic root of 244163131 is about 625.0192045299.

The spelling of 244163131 in words is "two hundred forty-four million, one hundred sixty-three thousand, one hundred thirty-one".