136649835 has 48 divisors (see below), whose sum is σ = 280740096. Its totient is φ = 62464608.

The previous prime is 136649833. The next prime is 136649839. The reversal of 136649835 is 538946631.

It is not a de Polignac number, because 136649835 - 2¹ = 136649833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (136649833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 472 + ... + 16538.

It is an arithmetic number, because the mean of its divisors is an integer number (5848752).

Almost surely, 2^136649835 is an apocalyptic number.

136649835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136649835 is an abundant number, since it is smaller than the sum of its proper divisors (144090261).

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

136649835 is an equidigital number, since it uses as much as digits as its factorization.

136649835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16094 (or 16082 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 136649835 is about 11689.7320328569. The cubic root of 136649835 is about 515.0740899470.

The spelling of 136649835 in words is "one hundred thirty-six million, six hundred forty-nine thousand, eight hundred thirty-five".