136690199 has 4 divisors (see below), whose sum is σ = 143884440. Its totient is φ = 129495960.

The previous prime is 136690193. The next prime is 136690259. The reversal of 136690199 is 991096631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136690199 - 2²⁴ = 119912983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136690193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3597092 + ... + 3597129.

It is an arithmetic number, because the mean of its divisors is an integer number (35971110).

Almost surely, 2^136690199 is an apocalyptic number.

136690199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136690199 is a deficient number, since it is larger than the sum of its proper divisors (7194241).

136690199 is an equidigital number, since it uses as much as digits as its factorization.

136690199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194240.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 136690199 is about 11691.4583778073. The cubic root of 136690199 is about 515.1247996164.

The spelling of 136690199 in words is "one hundred thirty-six million, six hundred ninety thousand, one hundred ninety-nine".