12152135 has 4 divisors (see below), whose sum is σ = 14582568. Its totient is φ = 9721704.

The previous prime is 12152099. The next prime is 12152137. The reversal of 12152135 is 53125121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12152135 - 2⁶ = 12152071 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 (12152137) 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, 1215209 + ... + 1215218.

It is an arithmetic number, because the mean of its divisors is an integer number (3645642).

Almost surely, 2^12152135 is an apocalyptic number.

12152135 is a deficient number, since it is larger than the sum of its proper divisors (2430433).

12152135 is an equidigital number, since it uses as much as digits as its factorization.

12152135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430432.

The product of its digits is 300, while the sum is 20.

The square root of 12152135 is about 3485.9912507062. The cubic root of 12152135 is about 229.9062945314.

Adding to 12152135 its reverse (53125121), we get a palindrome (65277256).

The spelling of 12152135 in words is "twelve million, one hundred fifty-two thousand, one hundred thirty-five".