136263169 has 12 divisors (see below), whose sum is σ = 158720148. Its totient is φ = 116642400.

The previous prime is 136263163. The next prime is 136263181. The reversal of 136263169 is 961362631.

It can be written as a sum of positive squares in 2 ways, for example, as 101606400 + 34656769 = 10080^2 + 5887^2 .

It is not a de Polignac number, because 136263169 - 2³ = 136263161 is a prime.

It is a super-2 number, since 2×136263169² = 37135302451845122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136263161) 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 in 11 ways as a sum of consecutive naturals, for example, 50679 + ... + 53299.

It is an arithmetic number, because the mean of its divisors is an integer number (13226679).

Almost surely, 2^136263169 is an apocalyptic number.

It is an amenable number.

136263169 is a deficient number, since it is larger than the sum of its proper divisors (22456979).

136263169 is a wasteful number, since it uses less digits than its factorization.

136263169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696 (or 3689 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 136263169 is about 11673.1816142815. The cubic root of 136263169 is about 514.5878110723.

The spelling of 136263169 in words is "one hundred thirty-six million, two hundred sixty-three thousand, one hundred sixty-nine".