136404235 has 32 divisors (see below), whose sum is σ = 183648960. Its totient is φ = 96422400.

The previous prime is 136404217. The next prime is 136404259. The reversal of 136404235 is 532404631.

It is not a de Polignac number, because 136404235 - 2⁹ = 136403723 is a prime.

It is a super-2 number, since 2×136404235² = 37212230651870450, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 365509 + ... + 365881.

It is an arithmetic number, because the mean of its divisors is an integer number (5739030).

Almost surely, 2^136404235 is an apocalyptic number.

136404235 is a deficient number, since it is larger than the sum of its proper divisors (47244725).

136404235 is a wasteful number, since it uses less digits than its factorization.

136404235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 136404235 is about 11679.2223628117. Note that the first 3 decimals coincide. The cubic root of 136404235 is about 514.7653249456.

Adding to 136404235 its reverse (532404631), we get a palindrome (668808866).

The spelling of 136404235 in words is "one hundred thirty-six million, four hundred four thousand, two hundred thirty-five".