2151505271 has 2 divisors, whose sum is σ = 2151505272. Its totient is φ = 2151505270.

The previous prime is 2151505247. The next prime is 2151505277. The reversal of 2151505271 is 1725051512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151505271 - 2⁶ = 2151505207 is a prime.

It is a super-2 number, since 2×2151505271² = 9257949862281566882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151505277) 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, 1075752635 + 1075752636.

It is an arithmetic number, because the mean of its divisors is an integer number (1075752636).

Almost surely, 2^2151505271 is an apocalyptic number.

2151505271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151505271 is an equidigital number, since it uses as much as digits as its factorization.

2151505271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 2151505271 is about 46384.3213920394. The cubic root of 2151505271 is about 1290.9640193066.

Adding to 2151505271 its reverse (1725051512), we get a palindrome (3876556783).

The spelling of 2151505271 in words is "two billion, one hundred fifty-one million, five hundred five thousand, two hundred seventy-one".