2151532225697 has 2 divisors, whose sum is σ = 2151532225698. Its totient is φ = 2151532225696.

The previous prime is 2151532225649. The next prime is 2151532225699. The reversal of 2151532225697 is 7965222351512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1800062288896 + 351469936801 = 1341664^2 + 592849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151532225697 is a prime.

Together with 2151532225699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2151532225699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075766112848 + 1075766112849.

It is an arithmetic number, because the mean of its divisors is an integer number (1075766112849).

Almost surely, 2^{2151532225697} is an apocalyptic number.

It is an amenable number.

2151532225697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151532225697 is an equidigital number, since it uses as much as digits as its factorization.

2151532225697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 50.

The spelling of 2151532225697 in words is "two trillion, one hundred fifty-one billion, five hundred thirty-two million, two hundred twenty-five thousand, six hundred ninety-seven".