14991100897 has 2 divisors, whose sum is σ = 14991100898. Its totient is φ = 14991100896.

The previous prime is 14991100867. The next prime is 14991100903. The reversal of 14991100897 is 79800119941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12996228001 + 1994872896 = 114001^2 + 44664^2 .

It is an emirp because it is prime and its reverse (79800119941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14991100897 - 2¹¹ = 14991098849 is a prime.

It is a super-2 number, since 2×14991100897² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14991100897.

It is not a weakly prime, because it can be changed into another prime (14991100847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7495550448 + 7495550449.

It is an arithmetic number, because the mean of its divisors is an integer number (7495550449).

Almost surely, 2^14991100897 is an apocalyptic number.

It is an amenable number.

14991100897 is a deficient number, since it is larger than the sum of its proper divisors (1).

14991100897 is an equidigital number, since it uses as much as digits as its factorization.

14991100897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 49.

The spelling of 14991100897 in words is "fourteen billion, nine hundred ninety-one million, one hundred thousand, eight hundred ninety-seven".