944409131 has 2 divisors, whose sum is σ = 944409132. Its totient is φ = 944409130.

The previous prime is 944409121. The next prime is 944409197. The reversal of 944409131 is 131904449.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944409131 is a prime.

It is a super-2 number, since 2×944409131² = 1783817213432350322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 944409091 and 944409100.

It is not a weakly prime, because it can be changed into another prime (944409101) 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 as a sum of consecutive naturals, namely, 472204565 + 472204566.

It is an arithmetic number, because the mean of its divisors is an integer number (472204566).

Almost surely, 2^944409131 is an apocalyptic number.

944409131 is a deficient number, since it is larger than the sum of its proper divisors (1).

944409131 is an equidigital number, since it uses as much as digits as its factorization.

944409131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 944409131 is about 30731.2403101469. The cubic root of 944409131 is about 981.1153243109.

The spelling of 944409131 in words is "nine hundred forty-four million, four hundred nine thousand, one hundred thirty-one".