145238 has 8 divisors (see below), whose sum is σ = 220320. Its totient is φ = 71800.

The previous prime is 145219. The next prime is 145253. The reversal of 145238 is 832541.

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

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

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, 158 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2¹⁴⁵²³⁸ is an apocalyptic number.

145238 is a deficient number, since it is larger than the sum of its proper divisors (75082).

145238 is a wasteful number, since it uses less digits than its factorization.

145238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822.

The product of its digits is 960, while the sum is 23.

The square root of 145238 is about 381.1010364720. The cubic root of 145238 is about 52.5646067809.

Adding to 145238 its reverse (832541), we get a palindrome (977779).

It can be divided in two parts, 145 and 238, that added together give a palindrome (383).

The spelling of 145238 in words is "one hundred forty-five thousand, two hundred thirty-eight".