147985587 has 12 divisors (see below), whose sum is σ = 215174544. Its totient is φ = 98002800.

The previous prime is 147985567. The next prime is 147985589. The reversal of 147985587 is 785589741.

147985587 is a `hidden beast` number, since 14 + 79 + 8 + 558 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-147985587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147985589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53088 + ... + 55805.

It is an arithmetic number, because the mean of its divisors is an integer number (17931212).

Almost surely, 2^147985587 is an apocalyptic number.

147985587 is a deficient number, since it is larger than the sum of its proper divisors (67188957).

147985587 is a wasteful number, since it uses less digits than its factorization.

147985587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109050 (or 109047 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 147985587 is about 12164.9326755227. The cubic root of 147985587 is about 528.9400758543.

The spelling of 147985587 in words is "one hundred forty-seven million, nine hundred eighty-five thousand, five hundred eighty-seven".