136429687 has 2 divisors, whose sum is σ = 136429688. Its totient is φ = 136429686.

The previous prime is 136429661. The next prime is 136429757. The reversal of 136429687 is 786924631.

It is a weak prime.

It is an emirp because it is prime and its reverse (786924631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136429687 - 2¹⁵ = 136396919 is a prime.

It is a super-2 number, since 2×136429687² = 37226118989835938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136429637) 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, 68214843 + 68214844.

It is an arithmetic number, because the mean of its divisors is an integer number (68214844).

Almost surely, 2^136429687 is an apocalyptic number.

136429687 is a deficient number, since it is larger than the sum of its proper divisors (1).

136429687 is an equidigital number, since it uses as much as digits as its factorization.

136429687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 136429687 is about 11680.3119393276. The cubic root of 136429687 is about 514.7973400616.

The spelling of 136429687 in words is "one hundred thirty-six million, four hundred twenty-nine thousand, six hundred eighty-seven".