14531454140 has 96 divisors (see below), whose sum is σ = 37624051584. Its totient is φ = 4600627200.

The previous prime is 14531454139. The next prime is 14531454149. The reversal of 14531454140 is 4145413541.

It is a super-2 number, since 2×14531454140² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14531454097 and 14531454106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14531454149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68540 + ... + 183740.

It is an arithmetic number, because the mean of its divisors is an integer number (391917204).

Almost surely, 2^14531454140 is an apocalyptic number.

14531454140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14531454140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18812025792).

14531454140 is an abundant number, since it is smaller than the sum of its proper divisors (23092597444).

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

14531454140 is a wasteful number, since it uses less digits than its factorization.

14531454140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115287 (or 115285 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 14531454140 its reverse (4145413541), we get a palindrome (18676867681).

The spelling of 14531454140 in words is "fourteen billion, five hundred thirty-one million, four hundred fifty-four thousand, one hundred forty".