1121075365 has 16 divisors (see below), whose sum is σ = 1353757680. Its totient is φ = 891233280.

The previous prime is 1121075339. The next prime is 1121075401. The reversal of 1121075365 is 5635701211.

It can be written as a sum of positive squares in 8 ways, for example, as 217592001 + 903483364 = 14751^2 + 30058^2 .

It is not a de Polignac number, because 1121075365 - 2¹⁵ = 1121042597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911571 + ... + 912799.

It is an arithmetic number, because the mean of its divisors is an integer number (84609855).

Almost surely, 2^1121075365 is an apocalyptic number.

It is an amenable number.

1121075365 is a deficient number, since it is larger than the sum of its proper divisors (232682315).

1121075365 is a wasteful number, since it uses less digits than its factorization.

1121075365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1121075365 is about 33482.4635443690. The cubic root of 1121075365 is about 1038.8310846722.

Adding to 1121075365 its reverse (5635701211), we get a palindrome (6756776576).

The spelling of 1121075365 in words is "one billion, one hundred twenty-one million, seventy-five thousand, three hundred sixty-five".