136140210 has 64 divisors (see below), whose sum is σ = 375580800. Its totient is φ = 35050176.

The previous prime is 136140209. The next prime is 136140283. The reversal of 136140210 is 12041631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 864 + ... + 16523.

It is an arithmetic number, because the mean of its divisors is an integer number (5868450).

Almost surely, 2^136140210 is an apocalyptic number.

136140210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136140210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187790400).

136140210 is an abundant number, since it is smaller than the sum of its proper divisors (239440590).

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

136140210 is a wasteful number, since it uses less digits than its factorization.

136140210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17432 (or 17426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 136140210 is about 11667.9136952585. The cubic root of 136140210 is about 514.4329826265.

Adding to 136140210 its reverse (12041631), we get a palindrome (148181841).

The spelling of 136140210 in words is "one hundred thirty-six million, one hundred forty thousand, two hundred ten".