162336121 has 2 divisors, whose sum is σ = 162336122. Its totient is φ = 162336120.

The previous prime is 162336061. The next prime is 162336149. The reversal of 162336121 is 121633261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111070521 + 51265600 = 10539^2 + 7160^2 .

It is an emirp because it is prime and its reverse (121633261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162336121 is a prime.

It is not a weakly prime, because it can be changed into another prime (162336221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81168060 + 81168061.

It is an arithmetic number, because the mean of its divisors is an integer number (81168061).

Almost surely, 2^162336121 is an apocalyptic number.

It is an amenable number.

162336121 is a deficient number, since it is larger than the sum of its proper divisors (1).

162336121 is an equidigital number, since it uses as much as digits as its factorization.

162336121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 162336121 is about 12741.1192993394. The cubic root of 162336121 is about 545.5129373944.

Adding to 162336121 its reverse (121633261), we get a palindrome (283969382).

The spelling of 162336121 in words is "one hundred sixty-two million, three hundred thirty-six thousand, one hundred twenty-one".