12144534 has 16 divisors (see below), whose sum is σ = 25567680. Its totient is φ = 3835080.

The previous prime is 12144523. The next prime is 12144563. The reversal of 12144534 is 43544121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53152 + ... + 53379.

It is an arithmetic number, because the mean of its divisors is an integer number (1597980).

Almost surely, 2^12144534 is an apocalyptic number.

12144534 is an abundant number, since it is smaller than the sum of its proper divisors (13423146).

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

12144534 is a wasteful number, since it uses less digits than its factorization.

12144534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106555.

The product of its digits is 1920, while the sum is 24.

The square root of 12144534 is about 3484.9008594220. The cubic root of 12144534 is about 229.8583500832.

Adding to 12144534 its reverse (43544121), we get a palindrome (55688655).

The spelling of 12144534 in words is "twelve million, one hundred forty-four thousand, five hundred thirty-four".