1149678 has 24 divisors (see below), whose sum is σ = 2600208. Its totient is φ = 366432.

The previous prime is 1149661. The next prime is 1149679. The reversal of 1149678 is 8769411.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (108342).

2^1149678 is an apocalyptic number.

1149678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1149678 is an abundant number, since it is smaller than the sum of its proper divisors (1450530).

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

1149678 is a wasteful number, since it uses less digits than its factorization.

1149678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2805 counting only the distinct ones).

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

The square root of 1149678 is about 1072.2303856914. The cubic root of 1149678 is about 104.7591759685.

The spelling of 1149678 in words is "one million, one hundred forty-nine thousand, six hundred seventy-eight".