145236 has 72 divisors (see below), whose sum is σ = 446880. Its totient is φ = 36288.

The previous prime is 145219. The next prime is 145253. The reversal of 145236 is 632541.

It is a happy number.

145236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145219) and next prime (145253).

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a congruent number.

It is an unprimeable number.

145236 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 23 ways as a sum of consecutive naturals, for example, 7635 + ... + 7653.

2¹⁴⁵²³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223440).

145236 is an abundant number, since it is smaller than the sum of its proper divisors (301644).

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

145236 is a wasteful number, since it uses less digits than its factorization.

145236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53 (or 44 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 145236 is about 381.0984124869. The cubic root of 145236 is about 52.5643654995.

Adding to 145236 its reverse (632541), we get a palindrome (777777).

The spelling of 145236 in words is "one hundred forty-five thousand, two hundred thirty-six".