162389109 has 4 divisors (see below), whose sum is σ = 216518816. Its totient is φ = 108259404.

The previous prime is 162389099. The next prime is 162389119. The reversal of 162389109 is 901983261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901983261 = 3 ⋅300661087.

It is an interprime number because it is at equal distance from previous prime (162389099) and next prime (162389119).

It is not a de Polignac number, because 162389109 - 2⁵ = 162389077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162389119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27064849 + ... + 27064854.

It is an arithmetic number, because the mean of its divisors is an integer number (54129704).

Almost surely, 2^162389109 is an apocalyptic number.

It is an amenable number.

162389109 is a deficient number, since it is larger than the sum of its proper divisors (54129707).

162389109 is an equidigital number, since it uses as much as digits as its factorization.

162389109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54129706.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 162389109 is about 12743.1985388285. The cubic root of 162389109 is about 545.5722844145.

The spelling of 162389109 in words is "one hundred sixty-two million, three hundred eighty-nine thousand, one hundred nine".