162189413 has 2 divisors, whose sum is σ = 162189414. Its totient is φ = 162189412.

The previous prime is 162189409. The next prime is 162189439. The reversal of 162189413 is 314981261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148888804 + 13300609 = 12202^2 + 3647^2 .

It is a cyclic number.

It is not a de Polignac number, because 162189413 - 2² = 162189409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162189113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81094706 + 81094707.

It is an arithmetic number, because the mean of its divisors is an integer number (81094707).

Almost surely, 2^162189413 is an apocalyptic number.

It is an amenable number.

162189413 is a deficient number, since it is larger than the sum of its proper divisors (1).

162189413 is an equidigital number, since it uses as much as digits as its factorization.

162189413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 162189413 is about 12735.3607330142. The cubic root of 162189413 is about 545.3485557553.

The spelling of 162189413 in words is "one hundred sixty-two million, one hundred eighty-nine thousand, four hundred thirteen".