1137931687 has 2 divisors, whose sum is σ = 1137931688. Its totient is φ = 1137931686.

The previous prime is 1137931673. The next prime is 1137931709. The reversal of 1137931687 is 7861397311.

It is a weak prime.

It is an emirp because it is prime and its reverse (7861397311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1137931687 - 2¹⁹ = 1137407399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1137931607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568965843 + 568965844.

It is an arithmetic number, because the mean of its divisors is an integer number (568965844).

Almost surely, 2^1137931687 is an apocalyptic number.

1137931687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137931687 is an equidigital number, since it uses as much as digits as its factorization.

1137931687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 46.

The square root of 1137931687 is about 33733.2430548858. The cubic root of 1137931687 is about 1044.0117751763.

The spelling of 1137931687 in words is "one billion, one hundred thirty-seven million, nine hundred thirty-one thousand, six hundred eighty-seven".