2021160125 has 16 divisors (see below), whose sum is σ = 2556972912. Its totient is φ = 1594771200.

The previous prime is 2021160091. The next prime is 2021160137. The reversal of 2021160125 is 5210611202.

It can be written as a sum of positive squares in 8 ways, for example, as 309021241 + 1712138884 = 17579^2 + 41378^2 .

It is not a de Polignac number, because 2021160125 - 2⁶ = 2021160061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021160097 and 2021160106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101624 + ... + 119873.

It is an arithmetic number, because the mean of its divisors is an integer number (159810807).

Almost surely, 2^2021160125 is an apocalyptic number.

2021160125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021160125 is a deficient number, since it is larger than the sum of its proper divisors (535812787).

2021160125 is an equidigital number, since it uses as much as digits as its factorization.

2021160125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221585 (or 221575 counting only the distinct ones).

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

The square root of 2021160125 is about 44957.3144771794. The cubic root of 2021160125 is about 1264.3488188757.

Adding to 2021160125 its reverse (5210611202), we get a palindrome (7231771327).

The spelling of 2021160125 in words is "two billion, twenty-one million, one hundred sixty thousand, one hundred twenty-five".