162021125 has 16 divisors (see below), whose sum is σ = 231089664. Its totient is φ = 111099600.

The previous prime is 162021103. The next prime is 162021133. The reversal of 162021125 is 521120261.

It is not a de Polignac number, because 162021125 - 2⁶ = 162021061 is a prime.

It is a super-3 number, since 3×162021125³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162021097 and 162021106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91709 + ... + 93458.

It is an arithmetic number, because the mean of its divisors is an integer number (14443104).

Almost surely, 2^162021125 is an apocalyptic number.

It is an amenable number.

162021125 is a deficient number, since it is larger than the sum of its proper divisors (69068539).

162021125 is an equidigital number, since it uses as much as digits as its factorization.

162021125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185189 (or 185179 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 162021125 is about 12728.7519026808. The cubic root of 162021125 is about 545.1598722966.

Adding to 162021125 its reverse (521120261), we get a palindrome (683141386).

It can be divided in two parts, 1620 and 21125, that multiplied together give a square (34222500 = 5850²).

The spelling of 162021125 in words is "one hundred sixty-two million, twenty-one thousand, one hundred twenty-five".