131112649 has 2 divisors, whose sum is σ = 131112650. Its totient is φ = 131112648.

The previous prime is 131112637. The next prime is 131112661. The reversal of 131112649 is 946211131.

It is a balanced prime because it is at equal distance from previous prime (131112637) and next prime (131112661).

It can be written as a sum of positive squares in only one way, i.e., 76825225 + 54287424 = 8765^2 + 7368^2 .

It is a cyclic number.

It is not a de Polignac number, because 131112649 - 2⁵ = 131112617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131112679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556324 + 65556325.

It is an arithmetic number, because the mean of its divisors is an integer number (65556325).

Almost surely, 2^131112649 is an apocalyptic number.

It is an amenable number.

131112649 is a deficient number, since it is larger than the sum of its proper divisors (1).

131112649 is an equidigital number, since it uses as much as digits as its factorization.

131112649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 131112649 is about 11450.4431791962. The cubic root of 131112649 is about 508.0208428115.

The spelling of 131112649 in words is "one hundred thirty-one million, one hundred twelve thousand, six hundred forty-nine".