455608191121 has 2 divisors, whose sum is σ = 455608191122. Its totient is φ = 455608191120.

The previous prime is 455608191047. The next prime is 455608191131. The reversal of 455608191121 is 121191806554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444803628096 + 10804563025 = 666936^2 + 103945^2 .

It is a cyclic number.

It is not a de Polignac number, because 455608191121 - 2¹¹ = 455608189073 is a prime.

It is not a weakly prime, because it can be changed into another prime (455608191131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227804095560 + 227804095561.

It is an arithmetic number, because the mean of its divisors is an integer number (227804095561).

Almost surely, 2^455608191121 is an apocalyptic number.

It is an amenable number.

455608191121 is a deficient number, since it is larger than the sum of its proper divisors (1).

455608191121 is an equidigital number, since it uses as much as digits as its factorization.

455608191121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 43.

Adding to 455608191121 its reverse (121191806554), we get a palindrome (576799997675).

The spelling of 455608191121 in words is "four hundred fifty-five billion, six hundred eight million, one hundred ninety-one thousand, one hundred twenty-one".