136241 has 4 divisors (see below), whose sum is σ = 155712. Its totient is φ = 116772.

The previous prime is 136237. The next prime is 136247. The reversal of 136241 is 142631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136241 - 2² = 136237 is a prime.

It is a super-2 number, since 2×136241² = 37123220162, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9725 + ... + 9738.

It is an arithmetic number, because the mean of its divisors is an integer number (38928).

2¹³⁶²⁴¹ is an apocalyptic number.

It is an amenable number.

136241 is a deficient number, since it is larger than the sum of its proper divisors (19471).

136241 is an equidigital number, since it uses as much as digits as its factorization.

136241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470.

The product of its digits is 144, while the sum is 17.

The square root of 136241 is about 369.1083851662. The cubic root of 136241 is about 51.4559903027.

Adding to 136241 its reverse (142631), we get a palindrome (278872).

The spelling of 136241 in words is "one hundred thirty-six thousand, two hundred forty-one".