136221141 has 16 divisors (see below), whose sum is σ = 207854208. Its totient is φ = 77736000.

The previous prime is 136221133. The next prime is 136221167. The reversal of 136221141 is 141122631.

It is not a de Polignac number, because 136221141 - 2³ = 136221133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136220141) by changing a digit.

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, 13291 + ... + 21191.

It is an arithmetic number, because the mean of its divisors is an integer number (12990888).

Almost surely, 2^136221141 is an apocalyptic number.

It is an amenable number.

136221141 is a deficient number, since it is larger than the sum of its proper divisors (71633067).

136221141 is an equidigital number, since it uses as much as digits as its factorization.

136221141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732.

The product of its digits is 288, while the sum is 21.

The square root of 136221141 is about 11671.3812807225. The cubic root of 136221141 is about 514.5349004177.

Adding to 136221141 its reverse (141122631), we get a palindrome (277343772).

The spelling of 136221141 in words is "one hundred thirty-six million, two hundred twenty-one thousand, one hundred forty-one".