1125718828097 has 2 divisors, whose sum is σ = 1125718828098. Its totient is φ = 1125718828096.

The previous prime is 1125718828057. The next prime is 1125718828109. The reversal of 1125718828097 is 7908288175211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1108337306176 + 17381521921 = 1052776^2 + 131839^2 .

It is an emirp because it is prime and its reverse (7908288175211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125718828097 - 2¹⁶ = 1125718762561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125718828027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562859414048 + 562859414049.

It is an arithmetic number, because the mean of its divisors is an integer number (562859414049).

Almost surely, 2^{1125718828097} is an apocalyptic number.

It is an amenable number.

1125718828097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125718828097 is an equidigital number, since it uses as much as digits as its factorization.

1125718828097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 59.

The spelling of 1125718828097 in words is "one trillion, one hundred twenty-five billion, seven hundred eighteen million, eight hundred twenty-eight thousand, ninety-seven".