147439892 has 12 divisors (see below), whose sum is σ = 260919540. Its totient is φ = 72891456.

The previous prime is 147439889. The next prime is 147439907. The reversal of 147439892 is 298934741.

It can be written as a sum of positive squares in 2 ways, for example, as 39363076 + 108076816 = 6274^2 + 10396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206723 + ... + 207434.

It is an arithmetic number, because the mean of its divisors is an integer number (21743295).

Almost surely, 2^147439892 is an apocalyptic number.

It is an amenable number.

147439892 is a deficient number, since it is larger than the sum of its proper divisors (113479648).

147439892 is a wasteful number, since it uses less digits than its factorization.

147439892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414250 (or 414248 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 147439892 is about 12142.4829421334. The cubic root of 147439892 is about 528.2891217658.

The spelling of 147439892 in words is "one hundred forty-seven million, four hundred thirty-nine thousand, eight hundred ninety-two".