136081216 has 14 divisors (see below), whose sum is σ = 270036290. Its totient is φ = 68040576.

The previous prime is 136081181. The next prime is 136081223. The reversal of 136081216 is 612180631.

It can be written as a sum of positive squares in only one way, i.e., 123121216 + 12960000 = 11096^2 + 3600^2 .

It is a congruent number.

It is an unprimeable number.

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, 1063071 + ... + 1063198.

Almost surely, 2^136081216 is an apocalyptic number.

136081216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136081216 is a deficient number, since it is larger than the sum of its proper divisors (133955074).

136081216 is an equidigital number, since it uses as much as digits as its factorization.

136081216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126281 (or 2126271 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 136081216 is about 11665.3853772604. The cubic root of 136081216 is about 514.3586650190.

The spelling of 136081216 in words is "one hundred thirty-six million, eighty-one thousand, two hundred sixteen".