136667929 has 2 divisors, whose sum is σ = 136667930. Its totient is φ = 136667928.

The previous prime is 136667917. The next prime is 136667941. The reversal of 136667929 is 929766631.

It is a balanced prime because it is at equal distance from previous prime (136667917) and next prime (136667941).

It can be written as a sum of positive squares in only one way, i.e., 89264704 + 47403225 = 9448^2 + 6885^2 .

It is a cyclic number.

It is not a de Polignac number, because 136667929 - 2⁹ = 136667417 is a prime.

It is not a weakly prime, because it can be changed into another prime (136667959) 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, 68333964 + 68333965.

It is an arithmetic number, because the mean of its divisors is an integer number (68333965).

Almost surely, 2^136667929 is an apocalyptic number.

It is an amenable number.

136667929 is a deficient number, since it is larger than the sum of its proper divisors (1).

136667929 is an equidigital number, since it uses as much as digits as its factorization.

136667929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 136667929 is about 11690.5059343041. The cubic root of 136667929 is about 515.0968228425.

The spelling of 136667929 in words is "one hundred thirty-six million, six hundred sixty-seven thousand, nine hundred twenty-nine".