1044121145 has 4 divisors (see below), whose sum is σ = 1252945380. Its totient is φ = 835296912.

The previous prime is 1044121103. The next prime is 1044121189. The reversal of 1044121145 is 5411214401.

1044121145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191656336 + 852464809 = 13844^2 + 29197^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044121145 - 2¹² = 1044117049 is a prime.

It is a super-2 number, since 2×1044121145² = 2180377930872222050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1044121145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104412110 + ... + 104412119.

It is an arithmetic number, because the mean of its divisors is an integer number (313236345).

Almost surely, 2^1044121145 is an apocalyptic number.

It is an amenable number.

1044121145 is a deficient number, since it is larger than the sum of its proper divisors (208824235).

1044121145 is an equidigital number, since it uses as much as digits as its factorization.

1044121145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208824234.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1044121145 is about 32312.8634602382. The cubic root of 1044121145 is about 1014.4959018169.

Adding to 1044121145 its reverse (5411214401), we get a palindrome (6455335546).

The spelling of 1044121145 in words is "one billion, forty-four million, one hundred twenty-one thousand, one hundred forty-five".