136345121 has 8 divisors (see below), whose sum is σ = 156568800. Its totient is φ = 117426240.

The previous prime is 136345091. The next prime is 136345133. The reversal of 136345121 is 121543631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136345121 - 2²² = 132150817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136345171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325976 + ... + 326393.

It is an arithmetic number, because the mean of its divisors is an integer number (19571100).

Almost surely, 2^136345121 is an apocalyptic number.

136345121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136345121 is a deficient number, since it is larger than the sum of its proper divisors (20223679).

136345121 is a wasteful number, since it uses less digits than its factorization.

136345121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652399.

The product of its digits is 2160, while the sum is 26.

The square root of 136345121 is about 11676.6913550029. The cubic root of 136345121 is about 514.6909522931.

Adding to 136345121 its reverse (121543631), we get a palindrome (257888752).

The spelling of 136345121 in words is "one hundred thirty-six million, three hundred forty-five thousand, one hundred twenty-one".