1145944 has 8 divisors (see below), whose sum is σ = 2148660. Its totient is φ = 572968.

The previous prime is 1145899. The next prime is 1145971. The reversal of 1145944 is 4495411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1145944² = 2626375302272, which contains 22 as substring.

It is an Ulam number.

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, 71614 + ... + 71629.

2^1145944 is an apocalyptic number.

It is an amenable number.

1145944 is a deficient number, since it is larger than the sum of its proper divisors (1002716).

1145944 is a wasteful number, since it uses less digits than its factorization.

1145944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143249 (or 143245 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 1145944 is about 1070.4877393039. The cubic root of 1145944 is about 104.6456383754.

The spelling of 1145944 in words is "one million, one hundred forty-five thousand, nine hundred forty-four".