1145044 has 12 divisors (see below), whose sum is σ = 2012724. Its totient is φ = 569984.

The previous prime is 1145021. The next prime is 1145057. The reversal of 1145044 is 4405411.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 67600 = 1038^2 + 260^2 .

It is a super-2 number, since 2×1145044² = 2622251523872, 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 in 3 ways as a sum of consecutive naturals, for example, 684 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (167727).

2^1145044 is an apocalyptic number.

It is an amenable number.

1145044 is a deficient number, since it is larger than the sum of its proper divisors (867680).

1145044 is a wasteful number, since it uses less digits than its factorization.

1145044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1145044 is about 1070.0672876039. The cubic root of 1145044 is about 104.6182357155.

The spelling of 1145044 in words is "one million, one hundred forty-five thousand, forty-four".