1145978 has 8 divisors (see below), whose sum is σ = 1735968. Its totient is φ = 567324.

The previous prime is 1145971. The next prime is 1145983. The reversal of 1145978 is 8795411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1145971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576 + ... + 2987.

It is an arithmetic number, because the mean of its divisors is an integer number (216996).

2^1145978 is an apocalyptic number.

1145978 is a deficient number, since it is larger than the sum of its proper divisors (589990).

1145978 is a wasteful number, since it uses less digits than its factorization.

1145978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668.

The product of its digits is 10080, while the sum is 35.

The square root of 1145978 is about 1070.5036197977. The cubic root of 1145978 is about 104.6466733057.

The spelling of 1145978 in words is "one million, one hundred forty-five thousand, nine hundred seventy-eight".