1145943 has 12 divisors (see below), whose sum is σ = 1667848. Its totient is φ = 758160.

The previous prime is 1145899. The next prime is 1145971. The reversal of 1145943 is 3495411.

It is not a de Polignac number, because 1145943 - 2¹⁰ = 1144919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008 + ... + 1818.

2^1145943 is an apocalyptic number.

1145943 is a deficient number, since it is larger than the sum of its proper divisors (521905).

1145943 is a wasteful number, since it uses less digits than its factorization.

1145943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 971 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1145943 is about 1070.4872722270. The cubic root of 1145943 is about 104.6456079360.

It can be divided in two parts, 11 and 45943, that added together give a palindrome (45954).

The spelling of 1145943 in words is "one million, one hundred forty-five thousand, nine hundred forty-three".