136140378 has 32 divisors (see below), whose sum is σ = 298045440. Its totient is φ = 41114160.

The previous prime is 136140337. The next prime is 136140379. The reversal of 136140378 is 873041631.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (136140379) 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 15 ways as a sum of consecutive naturals, for example, 16903 + ... + 23621.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^136140378 is an apocalyptic number.

136140378 is an abundant number, since it is smaller than the sum of its proper divisors (161905062).

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

136140378 is a wasteful number, since it uses less digits than its factorization.

136140378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 136140378 is about 11667.9208944867. The cubic root of 136140378 is about 514.4331942336.

The spelling of 136140378 in words is "one hundred thirty-six million, one hundred forty thousand, three hundred seventy-eight".