162162381 has 8 divisors (see below), whose sum is σ = 217039680. Its totient is φ = 107696672.

The previous prime is 162162353. The next prime is 162162401. The reversal of 162162381 is 183261261.

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 162162381 - 2¹⁰ = 162161357 is a prime.

It is a super-2 number, since 2×162162381² = 52593275623178322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162162181) 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, 101976 + ... + 103553.

It is an arithmetic number, because the mean of its divisors is an integer number (27129960).

Almost surely, 2^162162381 is an apocalyptic number.

It is an amenable number.

162162381 is a deficient number, since it is larger than the sum of its proper divisors (54877299).

162162381 is a wasteful number, since it uses less digits than its factorization.

162162381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205795.

The product of its digits is 3456, while the sum is 30.

The square root of 162162381 is about 12734.2993918001. The cubic root of 162162381 is about 545.3182564467.

The spelling of 162162381 in words is "one hundred sixty-two million, one hundred sixty-two thousand, three hundred eighty-one".