162118409 has 8 divisors (see below), whose sum is σ = 172005120. Its totient is φ = 152270656.

The previous prime is 162118399. The next prime is 162118417. The reversal of 162118409 is 904811261.

162118409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162118409 - 2⁸ = 162118153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162118459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 18030.

It is an arithmetic number, because the mean of its divisors is an integer number (21500640).

Almost surely, 2^162118409 is an apocalyptic number.

It is an amenable number.

162118409 is a deficient number, since it is larger than the sum of its proper divisors (9886711).

162118409 is a wasteful number, since it uses less digits than its factorization.

162118409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19479.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 162118409 is about 12732.5727565170. The cubic root of 162118409 is about 545.2689624368.

The spelling of 162118409 in words is "one hundred sixty-two million, one hundred eighteen thousand, four hundred nine".