136015969 has 2 divisors, whose sum is σ = 136015970. Its totient is φ = 136015968.

The previous prime is 136015961. The next prime is 136015981. The reversal of 136015969 is 969510631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82901025 + 53114944 = 9105^2 + 7288^2 .

It is an emirp because it is prime and its reverse (969510631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136015969 - 2³ = 136015961 is a prime.

It is a super-2 number, since 2×136015969² = 37000687646017922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136015961) 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, 68007984 + 68007985.

It is an arithmetic number, because the mean of its divisors is an integer number (68007985).

Almost surely, 2^136015969 is an apocalyptic number.

It is an amenable number.

136015969 is a deficient number, since it is larger than the sum of its proper divisors (1).

136015969 is an equidigital number, since it uses as much as digits as its factorization.

136015969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 136015969 is about 11662.5884348201. The cubic root of 136015969 is about 514.2764451849.

The spelling of 136015969 in words is "one hundred thirty-six million, fifteen thousand, nine hundred sixty-nine".