1012649 has 6 divisors (see below), whose sum is σ = 1113210. Its totient is φ = 920480.

The previous prime is 1012637. The next prime is 1012657. The reversal of 1012649 is 9462101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 937024 + 75625 = 968^2 + 275^2 .

It is not a de Polignac number, because 1012649 - 2⁴ = 1012633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012619) 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 5 ways as a sum of consecutive naturals, for example, 4064 + ... + 4305.

It is an arithmetic number, because the mean of its divisors is an integer number (185535).

2^1012649 is an apocalyptic number.

It is an amenable number.

1012649 is a deficient number, since it is larger than the sum of its proper divisors (100561).

1012649 is an equidigital number, since it uses as much as digits as its factorization.

1012649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391 (or 8380 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1012649 is about 1006.3046258465. The cubic root of 1012649 is about 100.4198679749.

It can be divided in two parts, 1012 and 649, that added together give a palindrome (1661).

The spelling of 1012649 in words is "one million, twelve thousand, six hundred forty-nine".