131120140 has 48 divisors (see below), whose sum is σ = 293176800. Its totient is φ = 49116672.

The previous prime is 131120089. The next prime is 131120179. The reversal of 131120140 is 41021131.

It is a super-2 number, since 2×131120140² = 34384982227239200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131120140.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31882 + ... + 35758.

It is an arithmetic number, because the mean of its divisors is an integer number (6107850).

Almost surely, 2^131120140 is an apocalyptic number.

131120140 is a gapful number since it is divisible by the number (10) 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 131120140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146588400).

131120140 is an abundant number, since it is smaller than the sum of its proper divisors (162056660).

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

131120140 is a wasteful number, since it uses less digits than its factorization.

131120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 131120140 is about 11450.7702797672. The cubic root of 131120140 is about 508.0305177277.

Adding to 131120140 its reverse (41021131), we get a palindrome (172141271).

Subtracting from 131120140 its reverse (41021131), we obtain a palindrome (90099009).

The spelling of 131120140 in words is "one hundred thirty-one million, one hundred twenty thousand, one hundred forty".