131359649 has 2 divisors, whose sum is σ = 131359650. Its totient is φ = 131359648.

The previous prime is 131359633. The next prime is 131359651. The reversal of 131359649 is 946953131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77440000 + 53919649 = 8800^2 + 7343^2 .

It is an emirp because it is prime and its reverse (946953131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131359649 - 2⁴ = 131359633 is a prime.

It is a Sophie Germain prime.

Together with 131359651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131359609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65679824 + 65679825.

It is an arithmetic number, because the mean of its divisors is an integer number (65679825).

Almost surely, 2^131359649 is an apocalyptic number.

It is an amenable number.

131359649 is a deficient number, since it is larger than the sum of its proper divisors (1).

131359649 is an equidigital number, since it uses as much as digits as its factorization.

131359649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 131359649 is about 11461.2237130247. The cubic root of 131359649 is about 508.3396588182.

The spelling of 131359649 in words is "one hundred thirty-one million, three hundred fifty-nine thousand, six hundred forty-nine".