1013987551 has 2 divisors, whose sum is σ = 1013987552. Its totient is φ = 1013987550.

The previous prime is 1013987549. The next prime is 1013987599. The reversal of 1013987551 is 1557893101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1557893101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013987551 - 2¹ = 1013987549 is a prime.

It is a super-3 number, since 3×1013987551³ (a number of 28 digits) contains 333 as substring.

Together with 1013987549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013987951) 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 as a sum of consecutive naturals, namely, 506993775 + 506993776.

It is an arithmetic number, because the mean of its divisors is an integer number (506993776).

Almost surely, 2^1013987551 is an apocalyptic number.

1013987551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013987551 is an equidigital number, since it uses as much as digits as its factorization.

1013987551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 1013987551 is about 31843.1711831595. The cubic root of 1013987551 is about 1004.6409453072.

The spelling of 1013987551 in words is "one billion, thirteen million, nine hundred eighty-seven thousand, five hundred fifty-one".