12148542 has 48 divisors (see below), whose sum is σ = 31204992. Its totient is φ = 3470040.

The previous prime is 12148537. The next prime is 12148561. The reversal of 12148542 is 24584121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1617 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (650104).

Almost surely, 2^12148542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12148542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15602496).

12148542 is an abundant number, since it is smaller than the sum of its proper divisors (19056450).

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

12148542 is an equidigital number, since it uses as much as digits as its factorization.

12148542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595 (or 3583 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12148542 is about 3485.4758642114. The cubic root of 12148542 is about 229.8836336370.

The spelling of 12148542 in words is "twelve million, one hundred forty-eight thousand, five hundred forty-two".