131543514 has 20 divisors (see below), whose sum is σ = 294755274. Its totient is φ = 43847784.

The previous prime is 131543483. The next prime is 131543527. The reversal of 131543514 is 415345131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67815225 + 63728289 = 8235^2 + 7983^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 405837 + ... + 406160.

Almost surely, 2^131543514 is an apocalyptic number.

131543514 is an abundant number, since it is smaller than the sum of its proper divisors (163211760).

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

131543514 is an equidigital number, since it uses as much as digits as its factorization.

131543514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812011 (or 812002 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 131543514 is about 11469.2420848110. The cubic root of 131543514 is about 508.5767237457.

Adding to 131543514 its reverse (415345131), we get a palindrome (546888645).

The spelling of 131543514 in words is "one hundred thirty-one million, five hundred forty-three thousand, five hundred fourteen".