12153139 has 4 divisors (see below), whose sum is σ = 12216960. Its totient is φ = 12089320.

The previous prime is 12153137. The next prime is 12153143. The reversal of 12153139 is 93135121.

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 12153139 - 2¹ = 12153137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12153137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31624 + ... + 32005.

It is an arithmetic number, because the mean of its divisors is an integer number (3054240).

Almost surely, 2^12153139 is an apocalyptic number.

12153139 is a deficient number, since it is larger than the sum of its proper divisors (63821).

12153139 is an equidigital number, since it uses as much as digits as its factorization.

12153139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63820.

The product of its digits is 810, while the sum is 25.

The square root of 12153139 is about 3486.1352526831. The cubic root of 12153139 is about 229.9126259171.

The spelling of 12153139 in words is "twelve million, one hundred fifty-three thousand, one hundred thirty-nine".