12148523 has 4 divisors (see below), whose sum is σ = 12863160. Its totient is φ = 11433888.

The previous prime is 12148511. The next prime is 12148537. The reversal of 12148523 is 32584121.

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 12148523 - 2⁸ = 12148267 is a prime.

It is a super-2 number, since 2×12148523² = 295173222163058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12148492 and 12148501.

It is not an unprimeable number, because it can be changed into a prime (12148573) 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, 357293 + ... + 357326.

It is an arithmetic number, because the mean of its divisors is an integer number (3215790).

Almost surely, 2^12148523 is an apocalyptic number.

12148523 is a deficient number, since it is larger than the sum of its proper divisors (714637).

12148523 is an equidigital number, since it uses as much as digits as its factorization.

12148523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714636.

The product of its digits is 1920, while the sum is 26.

The square root of 12148523 is about 3485.4731386140. The cubic root of 12148523 is about 229.8835137930.

The spelling of 12148523 in words is "twelve million, one hundred forty-eight thousand, five hundred twenty-three".