545153154521 has 2 divisors, whose sum is σ = 545153154522. Its totient is φ = 545153154520.

The previous prime is 545153154493. The next prime is 545153154551. The reversal of 545153154521 is 125451351545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535794720400 + 9358434121 = 731980^2 + 96739^2 .

It is a cyclic number.

It is not a de Polignac number, because 545153154521 - 2⁶ = 545153154457 is a prime.

It is not a weakly prime, because it can be changed into another prime (545153154551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272576577260 + 272576577261.

It is an arithmetic number, because the mean of its divisors is an integer number (272576577261).

Almost surely, 2^545153154521 is an apocalyptic number.

It is an amenable number.

545153154521 is a deficient number, since it is larger than the sum of its proper divisors (1).

545153154521 is an equidigital number, since it uses as much as digits as its factorization.

545153154521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300000, while the sum is 41.

The spelling of 545153154521 in words is "five hundred forty-five billion, one hundred fifty-three million, one hundred fifty-four thousand, five hundred twenty-one".