11815152 has 40 divisors (see below), whose sum is σ = 30771840. Its totient is φ = 3906240.

The previous prime is 11815129. The next prime is 11815157. The reversal of 11815152 is 25151811.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11815157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5349 + ... + 7227.

It is an arithmetic number, because the mean of its divisors is an integer number (769296).

Almost surely, 2^11815152 is an apocalyptic number.

11815152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11815152 is an abundant number, since it is smaller than the sum of its proper divisors (18956688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11815152 is a wasteful number, since it uses less digits than its factorization.

11815152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2015 counting only the distinct ones).

The product of its digits is 400, while the sum is 24.

The square root of 11815152 is about 3437.3175587949. The cubic root of 11815152 is about 227.7612150735.

Adding to 11815152 its reverse (25151811), we get a palindrome (36966963).

The spelling of 11815152 in words is "eleven million, eight hundred fifteen thousand, one hundred fifty-two".