945555097 has 2 divisors, whose sum is σ = 945555098. Its totient is φ = 945555096.

The previous prime is 945555077. The next prime is 945555109. The reversal of 945555097 is 790555549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939483801 + 6071296 = 30651^2 + 2464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945555097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 945555097.

It is not a weakly prime, because it can be changed into another prime (945555077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472777548 + 472777549.

It is an arithmetic number, because the mean of its divisors is an integer number (472777549).

Almost surely, 2^945555097 is an apocalyptic number.

It is an amenable number.

945555097 is a deficient number, since it is larger than the sum of its proper divisors (1).

945555097 is an equidigital number, since it uses as much as digits as its factorization.

945555097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417500, while the sum is 49.

The square root of 945555097 is about 30749.8796257807. The cubic root of 945555097 is about 981.5119992665.

The spelling of 945555097 in words is "nine hundred forty-five million, five hundred fifty-five thousand, ninety-seven".