1444129331 has 2 divisors, whose sum is σ = 1444129332. Its totient is φ = 1444129330.

The previous prime is 1444129303. The next prime is 1444129339. The reversal of 1444129331 is 1339214441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444129331 is a prime.

It is a super-2 number, since 2×1444129331² = 4171019049309015122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1444129339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722064665 + 722064666.

It is an arithmetic number, because the mean of its divisors is an integer number (722064666).

Almost surely, 2^1444129331 is an apocalyptic number.

1444129331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444129331 is an equidigital number, since it uses as much as digits as its factorization.

1444129331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 1444129331 is about 38001.7016855824. The cubic root of 1444129331 is about 1130.3216071045.

The spelling of 1444129331 in words is "one billion, four hundred forty-four million, one hundred twenty-nine thousand, three hundred thirty-one".