136826887 has 2 divisors, whose sum is σ = 136826888. Its totient is φ = 136826886.

The previous prime is 136826831. The next prime is 136826891. The reversal of 136826887 is 788628631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136826887 - 2⁷ = 136826759 is a prime.

It is a super-2 number, since 2×136826887² = 37443194012221538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136826887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136826827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68413443 + 68413444.

It is an arithmetic number, because the mean of its divisors is an integer number (68413444).

Almost surely, 2^136826887 is an apocalyptic number.

136826887 is a deficient number, since it is larger than the sum of its proper divisors (1).

136826887 is an equidigital number, since it uses as much as digits as its factorization.

136826887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 136826887 is about 11697.3025522981. The cubic root of 136826887 is about 515.2964479181.

The spelling of 136826887 in words is "one hundred thirty-six million, eight hundred twenty-six thousand, eight hundred eighty-seven".