215007236497 has 2 divisors, whose sum is σ = 215007236498. Its totient is φ = 215007236496.

The previous prime is 215007236429. The next prime is 215007236501. The reversal of 215007236497 is 794632700512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184254704001 + 30752532496 = 429249^2 + 175364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215007236497 is a prime.

It is a super-2 number, since 2×215007236497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215007236797) 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, 107503618248 + 107503618249.

It is an arithmetic number, because the mean of its divisors is an integer number (107503618249).

Almost surely, 2^215007236497 is an apocalyptic number.

It is an amenable number.

215007236497 is a deficient number, since it is larger than the sum of its proper divisors (1).

215007236497 is an equidigital number, since it uses as much as digits as its factorization.

215007236497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 215007236497 in words is "two hundred fifteen billion, seven million, two hundred thirty-six thousand, four hundred ninety-seven".