215153145071 has 2 divisors, whose sum is σ = 215153145072. Its totient is φ = 215153145070.

The previous prime is 215153145049. The next prime is 215153145073. The reversal of 215153145071 is 170541351512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215153145071 - 2⁶ = 215153145007 is a prime.

Together with 215153145073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215153145073) 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, 107576572535 + 107576572536.

It is an arithmetic number, because the mean of its divisors is an integer number (107576572536).

Almost surely, 2^215153145071 is an apocalyptic number.

215153145071 is a deficient number, since it is larger than the sum of its proper divisors (1).

215153145071 is an equidigital number, since it uses as much as digits as its factorization.

215153145071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 35.

Adding to 215153145071 its reverse (170541351512), we get a palindrome (385694496583).

The spelling of 215153145071 in words is "two hundred fifteen billion, one hundred fifty-three million, one hundred forty-five thousand, seventy-one".