254121422100140 has 192 divisors, whose sum is σ = 622338038784000. Its totient is φ = 85359749873664.

The previous prime is 254121422100109. The next prime is 254121422100167. The reversal of 254121422100140 is 41001224121452.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3200602922 + ... + 3200682318.

It is an arithmetic number, because the mean of its divisors is an integer number (3241343952000).

Almost surely, 2^{254121422100140} is an apocalyptic number.

254121422100140 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 254121422100140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311169019392000).

254121422100140 is an abundant number, since it is smaller than the sum of its proper divisors (368216616683860).

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

254121422100140 is a wasteful number, since it uses less digits than its factorization.

254121422100140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80784 (or 80782 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 254121422100140 its reverse (41001224121452), we get a palindrome (295122646221592).

The spelling of 254121422100140 in words is "two hundred fifty-four trillion, one hundred twenty-one billion, four hundred twenty-two million, one hundred thousand, one hundred forty".