1146978 has 24 divisors (see below), whose sum is σ = 2840448. Its totient is φ = 327672.

The previous prime is 1146967. The next prime is 1146989. The reversal of 1146978 is 8796411.

It is an interprime number because it is at equal distance from previous prime (1146967) and next prime (1146989).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4426 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (118352).

2^1146978 is an apocalyptic number.

1146978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1146978 is an abundant number, since it is smaller than the sum of its proper divisors (1693470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1146978 is a wasteful number, since it uses less digits than its factorization.

1146978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9115 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1146978 is about 1070.9705878314. The cubic root of 1146978 is about 104.6771032818.

The spelling of 1146978 in words is "one million, one hundred forty-six thousand, nine hundred seventy-eight".