649146 has 8 divisors (see below), whose sum is σ = 1298304. Its totient is φ = 216380.

The previous prime is 649141. The next prime is 649147. The reversal of 649146 is 641946.

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

649146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (649141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54090 + ... + 54101.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

2⁶⁴⁹¹⁴⁶ is an apocalyptic number.

649146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649146 is a wasteful number, since it uses less digits than its factorization.

649146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108196.

The product of its digits is 5184, while the sum is 30.

The square root of 649146 is about 805.6959724363. The cubic root of 649146 is about 86.5859570770.

The spelling of 649146 in words is "six hundred forty-nine thousand, one hundred forty-six".