131124 has 36 divisors (see below), whose sum is σ = 357504. Its totient is φ = 37296.

The previous prime is 131113. The next prime is 131129. The reversal of 131124 is 421131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131129) by changing a digit.

131124 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 11 ways as a sum of consecutive naturals, for example, 477 + ... + 699.

2¹³¹¹²⁴ is an apocalyptic number.

131124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178752).

131124 is an abundant number, since it is smaller than the sum of its proper divisors (226380).

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

131124 is a wasteful number, since it uses less digits than its factorization.

131124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 235 counting only the distinct ones).

The product of its digits is 24, while the sum is 12.

The square root of 131124 is about 362.1104803786. The cubic root of 131124 is about 50.8035502923.

Adding to 131124 its reverse (421131), we get a palindrome (552255).

It can be divided in two parts, 1 and 31124, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 131124 in words is "one hundred thirty-one thousand, one hundred twenty-four".