155238 has 8 divisors (see below), whose sum is σ = 310488. Its totient is φ = 51744.

The previous prime is 155231. The next prime is 155251. The reversal of 155238 is 832551.

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

155238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12931 + ... + 12942.

It is an arithmetic number, because the mean of its divisors is an integer number (38811).

2¹⁵⁵²³⁸ is an apocalyptic number.

155238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155238 is a wasteful number, since it uses less digits than its factorization.

155238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25878.

The product of its digits is 1200, while the sum is 24.

The square root of 155238 is about 394.0025380629. The cubic root of 155238 is about 53.7443332768.

Adding to 155238 its reverse (832551), we get a palindrome (987789).

It can be divided in two parts, 155 and 238, that added together give a palindrome (393).

The spelling of 155238 in words is "one hundred fifty-five thousand, two hundred thirty-eight".