1145668 has 12 divisors (see below), whose sum is σ = 2059372. Its totient is φ = 557280.
The previous prime is 1145659. The next prime is 1145689. The reversal of 1145668 is 8665411.
It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 492804 = 808^2 + 702^2 .
It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.
It is a plaindrome in base 10.
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, 3723 + ... + 4018.
21145668 is an apocalyptic number.
It is an amenable number.
1145668 is a deficient number, since it is larger than the sum of its proper divisors (913704).
1145668 is a wasteful number, since it uses less digits than its factorization.
1145668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7782 (or 7780 counting only the distinct ones).
The product of its digits is 5760, while the sum is 31.
The square root of 1145668 is about 1070.3588183408. The cubic root of 1145668 is about 104.6372364188.
The spelling of 1145668 in words is "one million, one hundred forty-five thousand, six hundred sixty-eight".
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