131444120 has 32 divisors (see below), whose sum is σ = 302631120. Its totient is φ = 51354240.

The previous prime is 131444087. The next prime is 131444129. The reversal of 131444120 is 21444131.

It is a super-3 number, since 3×131444120³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131444092 and 131444101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131444129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36491 + ... + 39930.

Almost surely, 2^131444120 is an apocalyptic number.

131444120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444120 is an abundant number, since it is smaller than the sum of its proper divisors (171187000).

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

131444120 is a wasteful number, since it uses less digits than its factorization.

131444120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76475 (or 76471 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 131444120 is about 11464.9081984986. The cubic root of 131444120 is about 508.4485983055.

Adding to 131444120 its reverse (21444131), we get a palindrome (152888251).

The spelling of 131444120 in words is "one hundred thirty-one million, four hundred forty-four thousand, one hundred twenty".