131531314 has 4 divisors (see below), whose sum is σ = 197296974. Its totient is φ = 65765656.

The previous prime is 131531299. The next prime is 131531317. The reversal of 131531314 is 413135131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 92256025 + 39275289 = 9605^2 + 6267^2 .

It is not an unprimeable number, because it can be changed into a prime (131531317) 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 as a sum of consecutive naturals, namely, 32882827 + ... + 32882830.

Almost surely, 2^131531314 is an apocalyptic number.

131531314 is a deficient number, since it is larger than the sum of its proper divisors (65765660).

131531314 is an equidigital number, since it uses as much as digits as its factorization.

131531314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65765659.

The product of its digits is 540, while the sum is 22.

The square root of 131531314 is about 11468.7102151898. The cubic root of 131531314 is about 508.5610006143.

Adding to 131531314 its reverse (413135131), we get a palindrome (544666445).

The spelling of 131531314 in words is "one hundred thirty-one million, five hundred thirty-one thousand, three hundred fourteen".