136781214 has 8 divisors (see below), whose sum is σ = 273562440. Its totient is φ = 45593736.

The previous prime is 136781213. The next prime is 136781243. The reversal of 136781214 is 412187631.

136781214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

136781214 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136781213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11398429 + ... + 11398440.

It is an arithmetic number, because the mean of its divisors is an integer number (34195305).

Almost surely, 2^136781214 is an apocalyptic number.

136781214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136781214 is a wasteful number, since it uses less digits than its factorization.

136781214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22796874.

The product of its digits is 8064, while the sum is 33.

The square root of 136781214 is about 11695.3501016430. The cubic root of 136781214 is about 515.2391059869.

The spelling of 136781214 in words is "one hundred thirty-six million, seven hundred eighty-one thousand, two hundred fourteen".