10866145 has 8 divisors (see below), whose sum is σ = 13806504. Its totient is φ = 8181504.

The previous prime is 10866139. The next prime is 10866161. The reversal of 10866145 is 54166801.

10866145 = T₁₅₅ + T₁₅₆ + ... + T₄₀₉.

It can be written as a sum of positive squares in 4 ways, for example, as 1373584 + 9492561 = 1172^2 + 3081^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10866145 - 2³ = 10866137 is a prime.

It is a super-2 number, since 2×10866145² = 236146214322050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63834 + ... + 64003.

It is an arithmetic number, because the mean of its divisors is an integer number (1725813).

Almost surely, 2^10866145 is an apocalyptic number.

It is an amenable number.

10866145 is a deficient number, since it is larger than the sum of its proper divisors (2940359).

10866145 is a wasteful number, since it uses less digits than its factorization.

10866145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127859.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 10866145 is about 3296.3836245195. The cubic root of 10866145 is about 221.4922315351.

It can be divided in two parts, 10866 and 145, that added together give a palindrome (11011).

The spelling of 10866145 in words is "ten million, eight hundred sixty-six thousand, one hundred forty-five".