131125340 has 12 divisors (see below), whose sum is σ = 275363256. Its totient is φ = 52450128.

The previous prime is 131125333. The next prime is 131125387. The reversal of 131125340 is 43521131.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6556267 = 131125340 / (1 + 3 + 1 + 1 + 2 + 5 + 3 + 4 + 0).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3278114 + ... + 3278153.

It is an arithmetic number, because the mean of its divisors is an integer number (22946938).

Almost surely, 2^131125340 is an apocalyptic number.

131125340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131125340 is an abundant number, since it is smaller than the sum of its proper divisors (144237916).

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

131125340 is a wasteful number, since it uses less digits than its factorization.

131125340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6556276 (or 6556274 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131125340 is about 11450.9973364769. The cubic root of 131125340 is about 508.0372335121.

Adding to 131125340 its reverse (43521131), we get a palindrome (174646471).

The spelling of 131125340 in words is "one hundred thirty-one million, one hundred twenty-five thousand, three hundred forty".