649130 has 16 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 257232.

The previous prime is 649123. The next prime is 649141. The reversal of 649130 is 31946.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649096 and 649105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157 + ... + 1623.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2⁶⁴⁹¹³⁰ is an apocalyptic number.

649130 is a deficient number, since it is larger than the sum of its proper divisors (530230).

649130 is a wasteful number, since it uses less digits than its factorization.

649130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 649130 is about 805.6860430714. The cubic root of 649130 is about 86.5852456876.

The spelling of 649130 in words is "six hundred forty-nine thousand, one hundred thirty".