11378081 has 16 divisors (see below), whose sum is σ = 13462848. Its totient is φ = 9480000.

The previous prime is 11378071. The next prime is 11378099. The reversal of 11378081 is 18087311.

It is a cyclic number.

It is not a de Polignac number, because 11378081 - 2¹⁰ = 11377057 is a prime.

It is a super-2 number, since 2×11378081² = 258921454485122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11378011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35735 + ... + 36051.

It is an arithmetic number, because the mean of its divisors is an integer number (841428).

Almost surely, 2^11378081 is an apocalyptic number.

11378081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11378081 is a deficient number, since it is larger than the sum of its proper divisors (2084767).

11378081 is a wasteful number, since it uses less digits than its factorization.

11378081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 11378081 is about 3373.1411177121. The cubic root of 11378081 is about 224.9173754236.

The spelling of 11378081 in words is "eleven million, three hundred seventy-eight thousand, eighty-one".