253421605142 has 32 divisors (see below), whose sum is σ = 403661905920. Its totient is φ = 118989691200.

The previous prime is 253421605141. The next prime is 253421605163. The reversal of 253421605142 is 241506124352.

253421605142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253421605141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1910267 + ... + 2038617.

It is an arithmetic number, because the mean of its divisors is an integer number (12614434560).

Almost surely, 2^253421605142 is an apocalyptic number.

253421605142 is a deficient number, since it is larger than the sum of its proper divisors (150240300778).

253421605142 is a wasteful number, since it uses less digits than its factorization.

253421605142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128828.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 253421605142 its reverse (241506124352), we get a palindrome (494927729494).

The spelling of 253421605142 in words is "two hundred fifty-three billion, four hundred twenty-one million, six hundred five thousand, one hundred forty-two".