131359849 has 2 divisors, whose sum is σ = 131359850. Its totient is φ = 131359848.

The previous prime is 131359843. The next prime is 131359861. The reversal of 131359849 is 948953131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114811225 + 16548624 = 10715^2 + 4068^2 .

It is a cyclic number.

It is not a de Polignac number, because 131359849 - 2³ = 131359841 is a prime.

It is not a weakly prime, because it can be changed into another prime (131359841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65679924 + 65679925.

It is an arithmetic number, because the mean of its divisors is an integer number (65679925).

Almost surely, 2^131359849 is an apocalyptic number.

It is an amenable number.

131359849 is a deficient number, since it is larger than the sum of its proper divisors (1).

131359849 is an equidigital number, since it uses as much as digits as its factorization.

131359849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 131359849 is about 11461.2324380932. The cubic root of 131359849 is about 508.3399168069.

The spelling of 131359849 in words is "one hundred thirty-one million, three hundred fifty-nine thousand, eight hundred forty-nine".