162742161 has 8 divisors (see below), whose sum is σ = 222282144. Its totient is φ = 105848480.

The previous prime is 162742147. The next prime is 162742183. The reversal of 162742161 is 161247261.

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 162742161 - 2¹³ = 162733969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162742361) 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, 661431 + ... + 661676.

It is an arithmetic number, because the mean of its divisors is an integer number (27785268).

Almost surely, 2^162742161 is an apocalyptic number.

It is an amenable number.

162742161 is a deficient number, since it is larger than the sum of its proper divisors (59539983).

162742161 is a wasteful number, since it uses less digits than its factorization.

162742161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323151.

The product of its digits is 4032, while the sum is 30.

The square root of 162742161 is about 12757.0435838403. The cubic root of 162742161 is about 545.9673765209.

The spelling of 162742161 in words is "one hundred sixty-two million, seven hundred forty-two thousand, one hundred sixty-one".