131200540 has 12 divisors (see below), whose sum is σ = 275521176. Its totient is φ = 52480208.

The previous prime is 131200519. The next prime is 131200541. The reversal of 131200540 is 45002131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3279994 + ... + 3280033.

It is an arithmetic number, because the mean of its divisors is an integer number (22960098).

Almost surely, 2^131200540 is an apocalyptic number.

131200540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131200540 is an abundant number, since it is smaller than the sum of its proper divisors (144320636).

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

131200540 is a wasteful number, since it uses less digits than its factorization.

131200540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560036 (or 6560034 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 131200540 is about 11454.2804226193. The cubic root of 131200540 is about 508.1343342426.

Adding to 131200540 its reverse (45002131), we get a palindrome (176202671).

The spelling of 131200540 in words is "one hundred thirty-one million, two hundred thousand, five hundred forty".