134868787 has 2 divisors, whose sum is σ = 134868788. Its totient is φ = 134868786.

The previous prime is 134868739. The next prime is 134868791. The reversal of 134868787 is 787868431.

134868787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134868787 is a prime.

It is not a weakly prime, because it can be changed into another prime (134868187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67434393 + 67434394.

It is an arithmetic number, because the mean of its divisors is an integer number (67434394).

Almost surely, 2^134868787 is an apocalyptic number.

134868787 is a deficient number, since it is larger than the sum of its proper divisors (1).

134868787 is an equidigital number, since it uses as much as digits as its factorization.

134868787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1806336, while the sum is 52.

The square root of 134868787 is about 11613.3021574400. The cubic root of 134868787 is about 512.8265293323.

The spelling of 134868787 in words is "one hundred thirty-four million, eight hundred sixty-eight thousand, seven hundred eighty-seven".