2175148081 has 2 divisors, whose sum is σ = 2175148082. Its totient is φ = 2175148080.

The previous prime is 2175148039. The next prime is 2175148091. The reversal of 2175148081 is 1808415712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1211666481 + 963481600 = 34809^2 + 31040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175148081 - 2²³ = 2166759473 is a prime.

It is a super-2 number, since 2×2175148081² = 9462538348555965122, 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 2175148081.

It is not a weakly prime, because it can be changed into another prime (2175148091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087574040 + 1087574041.

It is an arithmetic number, because the mean of its divisors is an integer number (1087574041).

Almost surely, 2^2175148081 is an apocalyptic number.

It is an amenable number.

2175148081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175148081 is an equidigital number, since it uses as much as digits as its factorization.

2175148081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 2175148081 is about 46638.4828333856. The cubic root of 2175148081 is about 1295.6755877232.

The spelling of 2175148081 in words is "two billion, one hundred seventy-five million, one hundred forty-eight thousand, eighty-one".