1145738 has 16 divisors (see below), whose sum is σ = 1974240. Its totient is φ = 493200.

The previous prime is 1145723. The next prime is 1145741. The reversal of 1145738 is 8375411.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145738.

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 7 ways as a sum of consecutive naturals, for example, 953 + ... + 1788.

It is an arithmetic number, because the mean of its divisors is an integer number (123390).

2^1145738 is an apocalyptic number.

1145738 is a deficient number, since it is larger than the sum of its proper divisors (828502).

1145738 is a wasteful number, since it uses less digits than its factorization.

1145738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773.

The product of its digits is 3360, while the sum is 29.

The square root of 1145738 is about 1070.3915171562. The cubic root of 1145738 is about 104.6393674776.

The spelling of 1145738 in words is "one million, one hundred forty-five thousand, seven hundred thirty-eight".