647400141 has 32 divisors (see below), whose sum is σ = 982005120. Its totient is φ = 421379712.

The previous prime is 647400121. The next prime is 647400157. The reversal of 647400141 is 141004746.

647400141 is a `hidden beast` number, since 647 + 4 + 0 + 0 + 14 + 1 = 666.

647400141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 647400141 - 2²³ = 639011533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647400101) 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, 323841 + ... + 325833.

It is an arithmetic number, because the mean of its divisors is an integer number (30687660).

Almost surely, 2^647400141 is an apocalyptic number.

It is an amenable number.

647400141 is a deficient number, since it is larger than the sum of its proper divisors (334604979).

647400141 is a wasteful number, since it uses less digits than its factorization.

647400141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 647400141 is about 25444.0590511813. The cubic root of 647400141 is about 865.0826392585.

Adding to 647400141 its reverse (141004746), we get a palindrome (788404887).

The spelling of 647400141 in words is "six hundred forty-seven million, four hundred thousand, one hundred forty-one".