131244204 has 96 divisors (see below), whose sum is σ = 389165056. Its totient is φ = 33488640.

The previous prime is 131244203. The next prime is 131244209. The reversal of 131244204 is 402442131.

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

It is not an unprimeable number, because it can be changed into a prime (131244203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31914 + ... + 35790.

Almost surely, 2^131244204 is an apocalyptic number.

131244204 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 131244204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194582528).

131244204 is an abundant number, since it is smaller than the sum of its proper divisors (257920852).

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

131244204 is a wasteful number, since it uses less digits than its factorization.

131244204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3933 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 131244204 is about 11456.1862764185. The cubic root of 131244204 is about 508.1906976201.

Adding to 131244204 its reverse (402442131), we get a palindrome (533686335).

The spelling of 131244204 in words is "one hundred thirty-one million, two hundred forty-four thousand, two hundred four".