1075744121 has 2 divisors, whose sum is σ = 1075744122. Its totient is φ = 1075744120.

The previous prime is 1075744093. The next prime is 1075744129. The reversal of 1075744121 is 1214475701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 981944896 + 93799225 = 31336^2 + 9685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1075744121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1075744129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537872060 + 537872061.

It is an arithmetic number, because the mean of its divisors is an integer number (537872061).

Almost surely, 2^1075744121 is an apocalyptic number.

It is an amenable number.

1075744121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075744121 is an equidigital number, since it uses as much as digits as its factorization.

1075744121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1075744121 is about 32798.5383973128. The cubic root of 1075744121 is about 1024.6361178304.

The spelling of 1075744121 in words is "one billion, seventy-five million, seven hundred forty-four thousand, one hundred twenty-one".