11478645 has 16 divisors (see below), whose sum is σ = 20406720. Its totient is φ = 6121872.

The previous prime is 11478631. The next prime is 11478661. The reversal of 11478645 is 54687411.

It is a happy number.

11478645 is a `hidden beast` number, since 1 + 1 + 4 + 7 + 8 + 645 = 666.

It is not a de Polignac number, because 11478645 - 2⁷ = 11478517 is a prime.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42379 + ... + 42648.

It is an arithmetic number, because the mean of its divisors is an integer number (1275420).

Almost surely, 2^11478645 is an apocalyptic number.

11478645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11478645 is a deficient number, since it is larger than the sum of its proper divisors (8928075).

11478645 is an equidigital number, since it uses as much as digits as its factorization.

11478645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85041 (or 85035 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 11478645 is about 3388.0149055162. The cubic root of 11478645 is about 225.5780691108.

The spelling of 11478645 in words is "eleven million, four hundred seventy-eight thousand, six hundred forty-five".