6401144142 has 12 divisors (see below), whose sum is σ = 13869145680. Its totient is φ = 2133714708.

The previous prime is 6401144119. The next prime is 6401144159. The reversal of 6401144142 is 2414411046.

6401144142 is a `hidden beast` number, since 640 + 1 + 1 + 4 + 4 + 14 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177809542 + ... + 177809577.

It is an arithmetic number, because the mean of its divisors is an integer number (1155762140).

Almost surely, 2^6401144142 is an apocalyptic number.

6401144142 is an abundant number, since it is smaller than the sum of its proper divisors (7468001538).

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

6401144142 is a wasteful number, since it uses less digits than its factorization.

6401144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355619127 (or 355619124 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 6401144142 is about 80007.1505679336. The cubic root of 6401144142 is about 1856.7461651180.

Adding to 6401144142 its reverse (2414411046), we get a palindrome (8815555188).

The spelling of 6401144142 in words is "six billion, four hundred one million, one hundred forty-four thousand, one hundred forty-two".