147238146 has 48 divisors (see below), whose sum is σ = 352460160. Its totient is φ = 44048160.

The previous prime is 147238097. The next prime is 147238151. The reversal of 147238146 is 641832741.

It is a self number, because there is not a number n which added to its sum of digits gives 147238146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10936 + ... + 20348.

It is an arithmetic number, because the mean of its divisors is an integer number (7342920).

Almost surely, 2^147238146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147238146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176230080).

147238146 is an abundant number, since it is smaller than the sum of its proper divisors (205222014).

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

147238146 is a wasteful number, since it uses less digits than its factorization.

147238146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511 (or 9508 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 147238146 is about 12134.1726541203. The cubic root of 147238146 is about 528.0480543385.

The spelling of 147238146 in words is "one hundred forty-seven million, two hundred thirty-eight thousand, one hundred forty-six".