136421341 has 6 divisors (see below), whose sum is σ = 158694270. Its totient is φ = 116932536.

The previous prime is 136421333. The next prime is 136421353. The reversal of 136421341 is 143124631.

It can be written as a sum of positive squares in only one way, i.e., 74736025 + 61685316 = 8645^2 + 7854^2 .

It is not a de Polignac number, because 136421341 - 2³ = 136421333 is a prime.

It is a super-2 number, since 2×136421341² = 37221564560476562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136421321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1392006 + ... + 1392103.

It is an arithmetic number, because the mean of its divisors is an integer number (26449045).

Almost surely, 2^136421341 is an apocalyptic number.

It is an amenable number.

136421341 is a deficient number, since it is larger than the sum of its proper divisors (22272929).

136421341 is an equidigital number, since it uses as much as digits as its factorization.

136421341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784123 (or 2784116 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 136421341 is about 11679.9546660079. The cubic root of 136421341 is about 514.7868423801.

Adding to 136421341 its reverse (143124631), we get a palindrome (279545972).

The spelling of 136421341 in words is "one hundred thirty-six million, four hundred twenty-one thousand, three hundred forty-one".