12142494 has 96 divisors (see below), whose sum is σ = 33899040. Its totient is φ = 3193344.

The previous prime is 12142451. The next prime is 12142499. The reversal of 12142494 is 49424121.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142499) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34222 + ... + 34574.

It is an arithmetic number, because the mean of its divisors is an integer number (353115).

Almost surely, 2^12142494 is an apocalyptic number.

12142494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12142494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16949520).

12142494 is an abundant number, since it is smaller than the sum of its proper divisors (21756546).

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

12142494 is a wasteful number, since it uses less digits than its factorization.

12142494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12142494 is about 3484.6081558764. The cubic root of 12142494 is about 229.8454790722.

The spelling of 12142494 in words is "twelve million, one hundred forty-two thousand, four hundred ninety-four".