131788859 has 2 divisors, whose sum is σ = 131788860. Its totient is φ = 131788858.

The previous prime is 131788841. The next prime is 131788889. The reversal of 131788859 is 958887131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131788859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131788889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65894429 + 65894430.

It is an arithmetic number, because the mean of its divisors is an integer number (65894430).

Almost surely, 2^131788859 is an apocalyptic number.

131788859 is a deficient number, since it is larger than the sum of its proper divisors (1).

131788859 is an equidigital number, since it uses as much as digits as its factorization.

131788859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 50.

The square root of 131788859 is about 11479.9328830791. The cubic root of 131788859 is about 508.8927136364.

The spelling of 131788859 in words is "one hundred thirty-one million, seven hundred eighty-eight thousand, eight hundred fifty-nine".