136440615 has 16 divisors (see below), whose sum is σ = 229795200. Its totient is φ = 68938272.

The previous prime is 136440587. The next prime is 136440637. The reversal of 136440615 is 516044631.

It is not a de Polignac number, because 136440615 - 2¹¹ = 136438567 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 239085 + ... + 239654.

It is an arithmetic number, because the mean of its divisors is an integer number (14362200).

Almost surely, 2^136440615 is an apocalyptic number.

136440615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136440615 is a deficient number, since it is larger than the sum of its proper divisors (93354585).

136440615 is a wasteful number, since it uses less digits than its factorization.

136440615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478766.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 136440615 is about 11680.7797256861. The cubic root of 136440615 is about 514.8110847611.

The spelling of 136440615 in words is "one hundred thirty-six million, four hundred forty thousand, six hundred fifteen".