136041899 has 4 divisors (see below), whose sum is σ = 155476464. Its totient is φ = 116607336.

The previous prime is 136041889. The next prime is 136041911. The reversal of 136041899 is 998140631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998140631 = 24029 ⋅41539.

It is a cyclic number.

It is not a de Polignac number, because 136041899 - 2⁸ = 136041643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136041839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9717272 + ... + 9717285.

It is an arithmetic number, because the mean of its divisors is an integer number (38869116).

Almost surely, 2^136041899 is an apocalyptic number.

136041899 is a deficient number, since it is larger than the sum of its proper divisors (19434565).

136041899 is an equidigital number, since it uses as much as digits as its factorization.

136041899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19434564.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 136041899 is about 11663.7000561571. The cubic root of 136041899 is about 514.3091235560.

The spelling of 136041899 in words is "one hundred thirty-six million, forty-one thousand, eight hundred ninety-nine".