987158137 has 16 divisors (see below), whose sum is σ = 1183368960. Its totient is φ = 805128192.

The previous prime is 987158131. The next prime is 987158147. The reversal of 987158137 is 731851789.

It is a cyclic number.

It is not a de Polignac number, because 987158137 - 2¹¹ = 987156089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987158131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15189 + ... + 46957.

It is an arithmetic number, because the mean of its divisors is an integer number (73960560).

Almost surely, 2^987158137 is an apocalyptic number.

It is an amenable number.

987158137 is a deficient number, since it is larger than the sum of its proper divisors (196210823).

987158137 is a wasteful number, since it uses less digits than its factorization.

987158137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31992.

The product of its digits is 423360, while the sum is 49.

The square root of 987158137 is about 31419.0728220933. The cubic root of 987158137 is about 995.7009234259.

The spelling of 987158137 in words is "nine hundred eighty-seven million, one hundred fifty-eight thousand, one hundred thirty-seven".