11205861 has 16 divisors (see below), whose sum is σ = 15576960. Its totient is φ = 7156800.

The previous prime is 11205847. The next prime is 11205863. The reversal of 11205861 is 16850211.

It is not a de Polignac number, because 11205861 - 2⁶ = 11205797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12711 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (973560).

Almost surely, 2^11205861 is an apocalyptic number.

It is an amenable number.

11205861 is a deficient number, since it is larger than the sum of its proper divisors (4371099).

11205861 is a wasteful number, since it uses less digits than its factorization.

11205861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11205861 is about 3347.5156459679. The cubic root of 11205861 is about 223.7768092051.

The spelling of 11205861 in words is "eleven million, two hundred five thousand, eight hundred sixty-one".