136131278 has 16 divisors (see below), whose sum is σ = 212474880. Its totient is φ = 65333856.

The previous prime is 136131277. The next prime is 136131313. The reversal of 136131278 is 872131631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136131271) 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, 3251 + ... + 16817.

It is an arithmetic number, because the mean of its divisors is an integer number (13279680).

Almost surely, 2^136131278 is an apocalyptic number.

136131278 is a deficient number, since it is larger than the sum of its proper divisors (76343602).

136131278 is a wasteful number, since it uses less digits than its factorization.

136131278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13771.

The product of its digits is 6048, while the sum is 32.

The square root of 136131278 is about 11667.5309298926. The cubic root of 136131278 is about 514.4217319316.

The spelling of 136131278 in words is "one hundred thirty-six million, one hundred thirty-one thousand, two hundred seventy-eight".