1044021135 has 16 divisors (see below), whose sum is σ = 1695367296. Its totient is φ = 548500128.

The previous prime is 1044021113. The next prime is 1044021163. The reversal of 1044021135 is 5311204401.

It is not a de Polignac number, because 1044021135 - 2¹⁴ = 1044004751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518409 + ... + 520418.

It is an arithmetic number, because the mean of its divisors is an integer number (105960456).

Almost surely, 2^1044021135 is an apocalyptic number.

1044021135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1044021135 is a deficient number, since it is larger than the sum of its proper divisors (651346161).

1044021135 is a wasteful number, since it uses less digits than its factorization.

1044021135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038902.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1044021135 is about 32311.3158970662. The cubic root of 1044021135 is about 1014.4635099898.

Adding to 1044021135 its reverse (5311204401), we get a palindrome (6355225536).

The spelling of 1044021135 in words is "one billion, forty-four million, twenty-one thousand, one hundred thirty-five".