136396829 has 2 divisors, whose sum is σ = 136396830. Its totient is φ = 136396828.

The previous prime is 136396787. The next prime is 136396847. The reversal of 136396829 is 928693631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136305625 + 91204 = 11675^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 136396829 - 2¹² = 136392733 is a prime.

It is a super-2 number, since 2×136396829² = 37208189922510482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136396879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68198414 + 68198415.

It is an arithmetic number, because the mean of its divisors is an integer number (68198415).

Almost surely, 2^136396829 is an apocalyptic number.

It is an amenable number.

136396829 is a deficient number, since it is larger than the sum of its proper divisors (1).

136396829 is an equidigital number, since it uses as much as digits as its factorization.

136396829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 136396829 is about 11678.9052997274. The cubic root of 136396829 is about 514.7560084680.

The spelling of 136396829 in words is "one hundred thirty-six million, three hundred ninety-six thousand, eight hundred twenty-nine".