2161507027 has 2 divisors, whose sum is σ = 2161507028. Its totient is φ = 2161507026.

The previous prime is 2161506983. The next prime is 2161507037. The reversal of 2161507027 is 7207051612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2161507027 - 2¹⁹ = 2160982739 is a prime.

It is a super-2 number, since 2×2161507027² = 9344225255540757458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2161507027.

It is not a weakly prime, because it can be changed into another prime (2161507037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080753513 + 1080753514.

It is an arithmetic number, because the mean of its divisors is an integer number (1080753514).

Almost surely, 2^2161507027 is an apocalyptic number.

2161507027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161507027 is an equidigital number, since it uses as much as digits as its factorization.

2161507027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 2161507027 is about 46492.0103566193. The cubic root of 2161507027 is about 1292.9613729494.

Adding to 2161507027 its reverse (7207051612), we get a palindrome (9368558639).

The spelling of 2161507027 in words is "two billion, one hundred sixty-one million, five hundred seven thousand, twenty-seven".