11853155 has 4 divisors (see below), whose sum is σ = 14223792. Its totient is φ = 9482520.

The previous prime is 11853133. The next prime is 11853157. The reversal of 11853155 is 55135811.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11853155 - 2¹² = 11849059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11853157) 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, 1185311 + ... + 1185320.

It is an arithmetic number, because the mean of its divisors is an integer number (3555948).

Almost surely, 2^11853155 is an apocalyptic number.

11853155 is a deficient number, since it is larger than the sum of its proper divisors (2370637).

11853155 is an equidigital number, since it uses as much as digits as its factorization.

11853155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370636.

The product of its digits is 3000, while the sum is 29.

The square root of 11853155 is about 3442.8411232585. The cubic root of 11853155 is about 228.0051489039.

Adding to 11853155 its reverse (55135811), we get a palindrome (66988966).

The spelling of 11853155 in words is "eleven million, eight hundred fifty-three thousand, one hundred fifty-five".