136266481 has 8 divisors (see below), whose sum is σ = 147271040. Its totient is φ = 125336592.

The previous prime is 136266479. The next prime is 136266601. The reversal of 136266481 is 184662631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136266481 - 2¹ = 136266479 is a prime.

It is a super-2 number, since 2×136266481² = 37137107688246722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136266481.

It is not an unprimeable number, because it can be changed into a prime (136266401) 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 7 ways as a sum of consecutive naturals, for example, 14841 + ... + 22198.

It is an arithmetic number, because the mean of its divisors is an integer number (18408880).

Almost surely, 2^136266481 is an apocalyptic number.

It is an amenable number.

136266481 is a deficient number, since it is larger than the sum of its proper divisors (11004559).

136266481 is a wasteful number, since it uses less digits than its factorization.

136266481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37335.

The product of its digits is 41472, while the sum is 37.

The square root of 136266481 is about 11673.3234770566. The cubic root of 136266481 is about 514.5919802132.

The spelling of 136266481 in words is "one hundred thirty-six million, two hundred sixty-six thousand, four hundred eighty-one".