147238 has 16 divisors (see below), whose sum is σ = 272160. Its totient is φ = 58176.

The previous prime is 147229. The next prime is 147253. The reversal of 147238 is 832741.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

147238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223 + ... + 586.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2¹⁴⁷²³⁸ is an apocalyptic number.

147238 is a deficient number, since it is larger than the sum of its proper divisors (124922).

147238 is a wasteful number, since it uses less digits than its factorization.

147238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 1344, while the sum is 25.

The square root of 147238 is about 383.7160408427. The cubic root of 147238 is about 52.8047879803.

Adding to 147238 its reverse (832741), we get a palindrome (979979).

The spelling of 147238 in words is "one hundred forty-seven thousand, two hundred thirty-eight".