136582177481 has 8 divisors (see below), whose sum is σ = 137108349000. Its totient is φ = 136056244608.

The previous prime is 136582177463. The next prime is 136582177541. The reversal of 136582177481 is 184771285631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1331082256 + 135251095225 = 36484^2 + 367765^2 .

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 136582177481 - 2²⁶ = 136515068617 is a prime.

It is a super-2 number, since 2×136582177481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136582177411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1132895 + ... + 1247643.

It is an arithmetic number, because the mean of its divisors is an integer number (17138543625).

Almost surely, 2^136582177481 is an apocalyptic number.

It is an amenable number.

136582177481 is a deficient number, since it is larger than the sum of its proper divisors (526171519).

136582177481 is a wasteful number, since it uses less digits than its factorization.

136582177481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119323.

The product of its digits is 2257920, while the sum is 53.

The spelling of 136582177481 in words is "one hundred thirty-six billion, five hundred eighty-two million, one hundred seventy-seven thousand, four hundred eighty-one".