1072144109 has 2 divisors, whose sum is σ = 1072144110. Its totient is φ = 1072144108.

The previous prime is 1072144097. The next prime is 1072144127. The reversal of 1072144109 is 9014412701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602555209 + 469588900 = 24547^2 + 21670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072144109 - 2⁴ = 1072144093 is a prime.

It is a super-2 number, since 2×1072144109² = 2298985980926807762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072144159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536072054 + 536072055.

It is an arithmetic number, because the mean of its divisors is an integer number (536072055).

Almost surely, 2^1072144109 is an apocalyptic number.

It is an amenable number.

1072144109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072144109 is an equidigital number, since it uses as much as digits as its factorization.

1072144109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1072144109 is about 32743.6117280913. The cubic root of 1072144109 is about 1023.4918479551.

The spelling of 1072144109 in words is "one billion, seventy-two million, one hundred forty-four thousand, one hundred nine".