1013520655 has 12 divisors (see below), whose sum is σ = 1414792440. Its totient is φ = 694985424.

The previous prime is 1013520653. The next prime is 1013520689. The reversal of 1013520655 is 5560253101.

1013520655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1013520655 - 2¹ = 1013520653 is a prime.

It is a super-3 number, since 3×1013520655³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013520653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2068165 + ... + 2068654.

It is an arithmetic number, because the mean of its divisors is an integer number (117899370).

Almost surely, 2^1013520655 is an apocalyptic number.

1013520655 is a deficient number, since it is larger than the sum of its proper divisors (401271785).

1013520655 is an equidigital number, since it uses as much as digits as its factorization.

1013520655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136838 (or 4136831 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1013520655 is about 31835.8391596641. The cubic root of 1013520655 is about 1004.4867241990.

Adding to 1013520655 its reverse (5560253101), we get a palindrome (6573773756).

The spelling of 1013520655 in words is "one billion, thirteen million, five hundred twenty thousand, six hundred fifty-five".