987158136 has 32 divisors (see below), whose sum is σ = 2493343440. Its totient is φ = 325659648.

The previous prime is 987158131. The next prime is 987158147. The reversal of 987158136 is 631851789.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209691 + ... + 214346.

Almost surely, 2^987158136 is an apocalyptic number.

It is an amenable number.

987158136 is an abundant number, since it is smaller than the sum of its proper divisors (1506185304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987158136 is a wasteful number, since it uses less digits than its factorization.

987158136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424143 (or 424139 counting only the distinct ones).

The product of its digits is 362880, while the sum is 48.

The square root of 987158136 is about 31419.0728061794. The cubic root of 987158136 is about 995.7009230897.

The spelling of 987158136 in words is "nine hundred eighty-seven million, one hundred fifty-eight thousand, one hundred thirty-six".