136387751 has 2 divisors, whose sum is σ = 136387752. Its totient is φ = 136387750.

The previous prime is 136387721. The next prime is 136387777. The reversal of 136387751 is 157783631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136387751 - 2⁶ = 136387687 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 136387699 and 136387708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136387711) 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, 68193875 + 68193876.

It is an arithmetic number, because the mean of its divisors is an integer number (68193876).

Almost surely, 2^136387751 is an apocalyptic number.

136387751 is a deficient number, since it is larger than the sum of its proper divisors (1).

136387751 is an equidigital number, since it uses as much as digits as its factorization.

136387751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 136387751 is about 11678.5166438208. The cubic root of 136387751 is about 514.7445882154.

The spelling of 136387751 in words is "one hundred thirty-six million, three hundred eighty-seven thousand, seven hundred fifty-one".