12152155 has 8 divisors (see below), whose sum is σ = 15053184. Its totient is φ = 9408000.

The previous prime is 12152143. The next prime is 12152167. The reversal of 12152155 is 55125121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12152143) and next prime (12152167).

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

It is not a de Polignac number, because 12152155 - 2¹¹ = 12150107 is a prime.

It is a super-2 number, since 2×12152155² = 295349742288050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39046 + ... + 39355.

It is an arithmetic number, because the mean of its divisors is an integer number (1881648).

Almost surely, 2^12152155 is an apocalyptic number.

12152155 is a deficient number, since it is larger than the sum of its proper divisors (2901029).

12152155 is an equidigital number, since it uses as much as digits as its factorization.

12152155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78437.

The product of its digits is 500, while the sum is 22.

The square root of 12152155 is about 3485.9941193295. The cubic root of 12152155 is about 229.9064206580.

Adding to 12152155 its reverse (55125121), we get a palindrome (67277276).

The spelling of 12152155 in words is "twelve million, one hundred fifty-two thousand, one hundred fifty-five".