12153454240 has 24 divisors (see below), whose sum is σ = 28712536020. Its totient is φ = 4861381632.

The previous prime is 12153454237. The next prime is 12153454277. The reversal of 12153454240 is 4245435121.

It can be written as a sum of positive squares in 2 ways, for example, as 12114964624 + 38489616 = 110068^2 + 6204^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37979385 + ... + 37979704.

Almost surely, 2^12153454240 is an apocalyptic number.

12153454240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12153454240 is an abundant number, since it is smaller than the sum of its proper divisors (16559081780).

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

12153454240 is an equidigital number, since it uses as much as digits as its factorization.

12153454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75959104 (or 75959096 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12153454240 its reverse (4245435121), we get a palindrome (16398889361).

The spelling of 12153454240 in words is "twelve billion, one hundred fifty-three million, four hundred fifty-four thousand, two hundred forty".