131043340 has 12 divisors (see below), whose sum is σ = 275191056. Its totient is φ = 52417328.

The previous prime is 131043337. The next prime is 131043343. The reversal of 131043340 is 43340131.

It is an interprime number because it is at equal distance from previous prime (131043337) and next prime (131043343).

It is not an unprimeable number, because it can be changed into a prime (131043343) 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 3 ways as a sum of consecutive naturals, for example, 3276064 + ... + 3276103.

It is an arithmetic number, because the mean of its divisors is an integer number (22932588).

Almost surely, 2^131043340 is an apocalyptic number.

131043340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131043340 is an abundant number, since it is smaller than the sum of its proper divisors (144147716).

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

131043340 is a wasteful number, since it uses less digits than its factorization.

131043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552176 (or 6552174 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131043340 is about 11447.4163023802. The cubic root of 131043340 is about 507.9313100751.

Adding to 131043340 its reverse (43340131), we get a palindrome (174383471).

The spelling of 131043340 in words is "one hundred thirty-one million, forty-three thousand, three hundred forty".