147908139 has 8 divisors (see below), whose sum is σ = 197469072. Its totient is φ = 98476320.

The previous prime is 147908119. The next prime is 147908153. The reversal of 147908139 is 931809741.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147908139 - 2⁷ = 147908011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147908139.

It is not an unprimeable number, because it can be changed into a prime (147908119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29572 + ... + 34209.

It is an arithmetic number, because the mean of its divisors is an integer number (24683634).

Almost surely, 2^147908139 is an apocalyptic number.

147908139 is a deficient number, since it is larger than the sum of its proper divisors (49560933).

147908139 is an equidigital number, since it uses as much as digits as its factorization.

147908139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64557.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 147908139 is about 12161.7490107303. The cubic root of 147908139 is about 528.8477864625.

The spelling of 147908139 in words is "one hundred forty-seven million, nine hundred eight thousand, one hundred thirty-nine".