136522121 has 8 divisors (see below), whose sum is σ = 144761760. Its totient is φ = 128305728.

The previous prime is 136522097. The next prime is 136522123. The reversal of 136522121 is 121225631.

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 136522121 - 2¹⁴ = 136505737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136522123) 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, 7130 + ... + 17996.

It is an arithmetic number, because the mean of its divisors is an integer number (18095220).

Almost surely, 2^136522121 is an apocalyptic number.

It is an amenable number.

136522121 is a deficient number, since it is larger than the sum of its proper divisors (8239639).

136522121 is a wasteful number, since it uses less digits than its factorization.

136522121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623.

The product of its digits is 720, while the sum is 23.

The square root of 136522121 is about 11684.2680986016. The cubic root of 136522121 is about 514.9135758455.

Adding to 136522121 its reverse (121225631), we get a palindrome (257747752).

The spelling of 136522121 in words is "one hundred thirty-six million, five hundred twenty-two thousand, one hundred twenty-one".