649126 has 8 divisors (see below), whose sum is σ = 977184. Its totient is φ = 323400.

The previous prime is 649123. The next prime is 649141. The reversal of 649126 is 621946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 4⁸ + 1 + 9⁵ + 2¹⁹ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 649094 and 649103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (122148).

2⁶⁴⁹¹²⁶ is an apocalyptic number.

649126 is a deficient number, since it is larger than the sum of its proper divisors (328058).

649126 is a wasteful number, since it uses less digits than its factorization.

649126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its digits is 2592, while the sum is 28.

The square root of 649126 is about 805.6835607110. The cubic root of 649126 is about 86.5850678385.

The spelling of 649126 in words is "six hundred forty-nine thousand, one hundred twenty-six".