1649132735 has 16 divisors (see below), whose sum is σ = 2050456896. Its totient is φ = 1272273408.

The previous prime is 1649132717. The next prime is 1649132767. The reversal of 1649132735 is 5372319461.

It is a cyclic number.

It is not a de Polignac number, because 1649132735 - 2⁶ = 1649132671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1649132692 and 1649132701.

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, 18539 + ... + 60348.

It is an arithmetic number, because the mean of its divisors is an integer number (128153556).

Almost surely, 2^1649132735 is an apocalyptic number.

1649132735 is a deficient number, since it is larger than the sum of its proper divisors (401324161).

1649132735 is a wasteful number, since it uses less digits than its factorization.

1649132735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79042.

The product of its digits is 136080, while the sum is 41.

The square root of 1649132735 is about 40609.5153258445. The cubic root of 1649132735 is about 1181.4586803760.

The spelling of 1649132735 in words is "one billion, six hundred forty-nine million, one hundred thirty-two thousand, seven hundred thirty-five".