1013649 has 32 divisors (see below), whose sum is σ = 1720320. Its totient is φ = 516672.

The previous prime is 1013641. The next prime is 1013671. The reversal of 1013649 is 9463101.

It is not a de Polignac number, because 1013649 - 2³ = 1013641 is a prime.

1013649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1013641) 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 31 ways as a sum of consecutive naturals, for example, 12792 + ... + 12870.

It is an arithmetic number, because the mean of its divisors is an integer number (53760).

2^1013649 is an apocalyptic number.

It is an amenable number.

1013649 is a deficient number, since it is larger than the sum of its proper divisors (706671).

1013649 is a wasteful number, since it uses less digits than its factorization.

1013649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1013649 is about 1006.8013706784. The cubic root of 1013649 is about 100.4529122745.

The spelling of 1013649 in words is "one million, thirteen thousand, six hundred forty-nine".