162137249 has 2 divisors, whose sum is σ = 162137250. Its totient is φ = 162137248.

The previous prime is 162137221. The next prime is 162137257. The reversal of 162137249 is 942731261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135024400 + 27112849 = 11620^2 + 5207^2 .

It is an emirp because it is prime and its reverse (942731261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162137249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (162137749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81068624 + 81068625.

It is an arithmetic number, because the mean of its divisors is an integer number (81068625).

Almost surely, 2^162137249 is an apocalyptic number.

It is an amenable number.

162137249 is a deficient number, since it is larger than the sum of its proper divisors (1).

162137249 is an equidigital number, since it uses as much as digits as its factorization.

162137249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 162137249 is about 12733.3125697911. The cubic root of 162137249 is about 545.2900837670.

The spelling of 162137249 in words is "one hundred sixty-two million, one hundred thirty-seven thousand, two hundred forty-nine".