136269899 has 2 divisors, whose sum is σ = 136269900. Its totient is φ = 136269898.

The previous prime is 136269883. The next prime is 136269923. The reversal of 136269899 is 998962631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136269899 - 2⁴ = 136269883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136269899.

It is not a weakly prime, because it can be changed into another prime (136269839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68134949 + 68134950.

It is an arithmetic number, because the mean of its divisors is an integer number (68134950).

Almost surely, 2^136269899 is an apocalyptic number.

136269899 is a deficient number, since it is larger than the sum of its proper divisors (1).

136269899 is an equidigital number, since it uses as much as digits as its factorization.

136269899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 53.

The square root of 136269899 is about 11673.4698783181. The cubic root of 136269899 is about 514.5962827158.

The spelling of 136269899 in words is "one hundred thirty-six million, two hundred sixty-nine thousand, eight hundred ninety-nine".