136404140 has 12 divisors (see below), whose sum is σ = 286448736. Its totient is φ = 54561648.

The previous prime is 136404133. The next prime is 136404167. The reversal of 136404140 is 41404631.

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 in 3 ways as a sum of consecutive naturals, for example, 3410084 + ... + 3410123.

It is an arithmetic number, because the mean of its divisors is an integer number (23870728).

Almost surely, 2^136404140 is an apocalyptic number.

136404140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136404140 is an abundant number, since it is smaller than the sum of its proper divisors (150044596).

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

136404140 is a wasteful number, since it uses less digits than its factorization.

136404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820216 (or 6820214 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 136404140 is about 11679.2182957594. The cubic root of 136404140 is about 514.7652054412.

Adding to 136404140 its reverse (41404631), we get a palindrome (177808771).

The spelling of 136404140 in words is "one hundred thirty-six million, four hundred four thousand, one hundred forty".