1044145556 has 6 divisors (see below), whose sum is σ = 1827254730. Its totient is φ = 522072776.

The previous prime is 1044145523. The next prime is 1044145567. The reversal of 1044145556 is 6555414401.

It can be written as a sum of positive squares in only one way, i.e., 610090000 + 434055556 = 24700^2 + 20834^2 .

It is a super-2 number, since 2×1044145556² = 2180479884229098272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130518191 + ... + 130518198.

It is an arithmetic number, because the mean of its divisors is an integer number (304542455).

Almost surely, 2^1044145556 is an apocalyptic number.

It is an amenable number.

1044145556 is a deficient number, since it is larger than the sum of its proper divisors (783109174).

1044145556 is a wasteful number, since it uses less digits than its factorization.

1044145556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261036393 (or 261036391 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1044145556 is about 32313.2411868571. The cubic root of 1044145556 is about 1014.5038078811.

Adding to 1044145556 its reverse (6555414401), we get a palindrome (7599559957).

The spelling of 1044145556 in words is "one billion, forty-four million, one hundred forty-five thousand, five hundred fifty-six".