11885015 has 4 divisors (see below), whose sum is σ = 14262024. Its totient is φ = 9508008.

The previous prime is 11885009. The next prime is 11885017. The reversal of 11885015 is 51058811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51058811 = 821 ⋅62191.

It is a cyclic number.

It is not a de Polignac number, because 11885015 - 2¹² = 11880919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11885017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188497 + ... + 1188506.

It is an arithmetic number, because the mean of its divisors is an integer number (3565506).

Almost surely, 2^11885015 is an apocalyptic number.

11885015 is a deficient number, since it is larger than the sum of its proper divisors (2377009).

11885015 is an equidigital number, since it uses as much as digits as its factorization.

11885015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377008.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 11885015 is about 3447.4650106999. The cubic root of 11885015 is about 228.2092505473.

The spelling of 11885015 in words is "eleven million, eight hundred eighty-five thousand, fifteen".