254142454540 has 96 divisors (see below), whose sum is σ = 605183523840. Its totient is φ = 88871904000.

The previous prime is 254142454523. The next prime is 254142454543. The reversal of 254142454540 is 45454241452.

It is a super-2 number, since 2×254142454540² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254142454493 and 254142454502.

It is not an unprimeable number, because it can be changed into a prime (254142454543) 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, 24452745 + ... + 24463135.

It is an arithmetic number, because the mean of its divisors is an integer number (6303995040).

Almost surely, 2^254142454540 is an apocalyptic number.

254142454540 is a gapful number since it is divisible by the number (20) 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 254142454540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302591761920).

254142454540 is an abundant number, since it is smaller than the sum of its proper divisors (351041069300).

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

254142454540 is a wasteful number, since it uses less digits than its factorization.

254142454540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15383 (or 15381 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

Adding to 254142454540 its reverse (45454241452), we get a palindrome (299596695992).

The spelling of 254142454540 in words is "two hundred fifty-four billion, one hundred forty-two million, four hundred fifty-four thousand, five hundred forty".