324156 has 48 divisors (see below), whose sum is σ = 919296. Its totient is φ = 86784.

The previous prime is 324151. The next prime is 324161. The reversal of 324156 is 651423.

324156 = 130² + 131² + ... + 146².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (324151) and next prime (324161).

It is a super-2 number, since 2×324156² = 210154224672, which contains 22 as substring.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324151) by changing a digit.

324156 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 15 ways as a sum of consecutive naturals, for example, 1315 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2³²⁴¹⁵⁶ 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 324156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459648).

324156 is an abundant number, since it is smaller than the sum of its proper divisors (595140).

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

324156 is a wasteful number, since it uses less digits than its factorization.

324156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

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

The square root of 324156 is about 569.3469943716. The cubic root of 324156 is about 68.6938759587.

Adding to 324156 its reverse (651423), we get a palindrome (975579).

The spelling of 324156 in words is "three hundred twenty-four thousand, one hundred fifty-six".