1013205646 has 8 divisors (see below), whose sum is σ = 1555152984. Its totient is φ = 494821320.

The previous prime is 1013205563. The next prime is 1013205673. The reversal of 1013205646 is 6465023101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5890645 + ... + 5890816.

It is an arithmetic number, because the mean of its divisors is an integer number (194394123).

Almost surely, 2^1013205646 is an apocalyptic number.

1013205646 is a deficient number, since it is larger than the sum of its proper divisors (541947338).

1013205646 is a wasteful number, since it uses less digits than its factorization.

1013205646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11781506.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1013205646 is about 31830.8913792875. The cubic root of 1013205646 is about 1004.3826463509.

Adding to 1013205646 its reverse (6465023101), we get a palindrome (7478228747).

The spelling of 1013205646 in words is "one billion, thirteen million, two hundred five thousand, six hundred forty-six".