147439985 has 16 divisors (see below), whose sum is σ = 220586112. Its totient is φ = 91910400.

The previous prime is 147439979. The next prime is 147440003. The reversal of 147439985 is 589934741.

It is not a de Polignac number, because 147439985 - 2¹⁰ = 147438961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191096 + ... + 191865.

It is an arithmetic number, because the mean of its divisors is an integer number (13786632).

Almost surely, 2^147439985 is an apocalyptic number.

It is an amenable number.

147439985 is a deficient number, since it is larger than the sum of its proper divisors (73146127).

147439985 is a wasteful number, since it uses less digits than its factorization.

147439985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382984.

The product of its digits is 1088640, while the sum is 50.

The square root of 147439985 is about 12142.4867716625. The cubic root of 147439985 is about 528.2892328413.

The spelling of 147439985 in words is "one hundred forty-seven million, four hundred thirty-nine thousand, nine hundred eighty-five".