131483309 has 2 divisors, whose sum is σ = 131483310. Its totient is φ = 131483308.

The previous prime is 131483291. The next prime is 131483323. The reversal of 131483309 is 903384131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77827684 + 53655625 = 8822^2 + 7325^2 .

It is a cyclic number.

It is not a de Polignac number, because 131483309 - 2¹² = 131479213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131486309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65741654 + 65741655.

It is an arithmetic number, because the mean of its divisors is an integer number (65741655).

Almost surely, 2^131483309 is an apocalyptic number.

It is an amenable number.

131483309 is a deficient number, since it is larger than the sum of its proper divisors (1).

131483309 is an equidigital number, since it uses as much as digits as its factorization.

131483309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 131483309 is about 11466.6171559009. The cubic root of 131483309 is about 508.4991232287.

The spelling of 131483309 in words is "one hundred thirty-one million, four hundred eighty-three thousand, three hundred nine".