162002121 has 8 divisors (see below), whose sum is σ = 216077760. Its totient is φ = 107963952.

The previous prime is 162002101. The next prime is 162002123. The reversal of 162002121 is 121200261.

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

It is a de Polignac number, because none of the positive numbers 2^k-162002121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162002121.

It is not an unprimeable number, because it can be changed into a prime (162002123) 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, 3091 + ... + 18263.

It is an arithmetic number, because the mean of its divisors is an integer number (27009720).

Almost surely, 2^162002121 is an apocalyptic number.

It is an amenable number.

162002121 is a deficient number, since it is larger than the sum of its proper divisors (54075639).

162002121 is a wasteful number, since it uses less digits than its factorization.

162002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18735.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 162002121 is about 12728.0053818342. The cubic root of 162002121 is about 545.1385569212.

Adding to 162002121 its reverse (121200261), we get a palindrome (283202382).

The spelling of 162002121 in words is "one hundred sixty-two million, two thousand, one hundred twenty-one".