649137135 has 16 divisors (see below), whose sum is σ = 1039901184. Its totient is φ = 345779232.

The previous prime is 649137121. The next prime is 649137143. The reversal of 649137135 is 531731946.

It is not a de Polignac number, because 649137135 - 2⁵ = 649137103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 649137093 and 649137102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13947 + ... + 38636.

It is an arithmetic number, because the mean of its divisors is an integer number (64993824).

Almost surely, 2^649137135 is an apocalyptic number.

649137135 is a deficient number, since it is larger than the sum of its proper divisors (390764049).

649137135 is a wasteful number, since it uses less digits than its factorization.

649137135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53414.

The product of its digits is 68040, while the sum is 39.

The square root of 649137135 is about 25478.1697733570. The cubic root of 649137135 is about 865.8556292427.

The spelling of 649137135 in words is "six hundred forty-nine million, one hundred thirty-seven thousand, one hundred thirty-five".