602136121 has 2 divisors, whose sum is σ = 602136122. Its totient is φ = 602136120.

The previous prime is 602136103. The next prime is 602136149. The reversal of 602136121 is 121631206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491065600 + 111070521 = 22160^2 + 10539^2 .

It is a cyclic number.

It is not a de Polignac number, because 602136121 - 2⁵ = 602136089 is a prime.

It is equal to p_31430515 and since 602136121 and 31430515 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 602136092 and 602136101.

It is not a weakly prime, because it can be changed into another prime (602136151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301068060 + 301068061.

It is an arithmetic number, because the mean of its divisors is an integer number (301068061).

Almost surely, 2^602136121 is an apocalyptic number.

It is an amenable number.

602136121 is a deficient number, since it is larger than the sum of its proper divisors (1).

602136121 is an equidigital number, since it uses as much as digits as its factorization.

602136121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 602136121 is about 24538.4620748734. The cubic root of 602136121 is about 844.4324099348.

Adding to 602136121 its reverse (121631206), we get a palindrome (723767327).

The spelling of 602136121 in words is "six hundred two million, one hundred thirty-six thousand, one hundred twenty-one".