649605141 has 24 divisors (see below), whose sum is σ = 947700000. Its totient is φ = 428763552.

The previous prime is 649605113. The next prime is 649605161. The reversal of 649605141 is 141506946.

649605141 is a `hidden beast` number, since 6 + 4 + 9 + 605 + 1 + 41 = 666.

It is not a de Polignac number, because 649605141 - 2¹¹ = 649603093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 649605096 and 649605105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649605101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432610 + ... + 434108.

It is an arithmetic number, because the mean of its divisors is an integer number (39487500).

Almost surely, 2^649605141 is an apocalyptic number.

It is an amenable number.

649605141 is a deficient number, since it is larger than the sum of its proper divisors (298094859).

649605141 is a wasteful number, since it uses less digits than its factorization.

649605141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 649605141 is about 25487.3525694608. The cubic root of 649605141 is about 866.0636634993.

The spelling of 649605141 in words is "six hundred forty-nine million, six hundred five thousand, one hundred forty-one".