253451142140 has 24 divisors (see below), whose sum is σ = 608282741472. Its totient is φ = 86897534400.

The previous prime is 253451142127. The next prime is 253451142163. The reversal of 253451142140 is 41241154352.

It is a junction number, because it is equal to n+sod(n) for n = 253451142097 and 253451142106.

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, 905182511 + ... + 905182790.

It is an arithmetic number, because the mean of its divisors is an integer number (25345114228).

Almost surely, 2^253451142140 is an apocalyptic number.

253451142140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253451142140 is an abundant number, since it is smaller than the sum of its proper divisors (354831599332).

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

253451142140 is a wasteful number, since it uses less digits than its factorization.

253451142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810365317 (or 1810365315 counting only the distinct ones).

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

Adding to 253451142140 its reverse (41241154352), we get a palindrome (294692296492).

The spelling of 253451142140 in words is "two hundred fifty-three billion, four hundred fifty-one million, one hundred forty-two thousand, one hundred forty".