2160139285 has 8 divisors (see below), whose sum is σ = 2641076280. Its totient is φ = 1695505344.

The previous prime is 2160139253. The next prime is 2160139307. The reversal of 2160139285 is 5829310612.

It can be written as a sum of positive squares in 4 ways, for example, as 918211204 + 1241928081 = 30302^2 + 35241^2 .

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 2160139285 - 2⁵ = 2160139253 is a prime.

It is a super-2 number, since 2×2160139285² = 9332403461200622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4075470 + ... + 4075999.

It is an arithmetic number, because the mean of its divisors is an integer number (330134535).

Almost surely, 2^2160139285 is an apocalyptic number.

It is an amenable number.

2160139285 is a deficient number, since it is larger than the sum of its proper divisors (480936995).

2160139285 is an equidigital number, since it uses as much as digits as its factorization.

2160139285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151527.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2160139285 is about 46477.2985983480. The cubic root of 2160139285 is about 1292.6885986475.

Adding to 2160139285 its reverse (5829310612), we get a palindrome (7989449897).

The spelling of 2160139285 in words is "two billion, one hundred sixty million, one hundred thirty-nine thousand, two hundred eighty-five".