1013508687 has 4 divisors (see below), whose sum is σ = 1351344920. Its totient is φ = 675672456.

The previous prime is 1013508673. The next prime is 1013508689. The reversal of 1013508687 is 7868053101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1013508687 - 2¹⁸ = 1013246543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013508689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168918112 + ... + 168918117.

It is an arithmetic number, because the mean of its divisors is an integer number (337836230).

Almost surely, 2^1013508687 is an apocalyptic number.

1013508687 is a deficient number, since it is larger than the sum of its proper divisors (337836233).

1013508687 is an equidigital number, since it uses as much as digits as its factorization.

1013508687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337836232.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1013508687 is about 31835.6511948476. The cubic root of 1013508687 is about 1004.4827704087.

The spelling of 1013508687 in words is "one billion, thirteen million, five hundred eight thousand, six hundred eighty-seven".