545345530121501 has 2 divisors, whose sum is σ = 545345530121502. Its totient is φ = 545345530121500.

The previous prime is 545345530121443. The next prime is 545345530121503. The reversal of 545345530121501 is 105121035543545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400297855428025 + 145047674693476 = 20007445^2 + 12043574^2 .

It is a cyclic number.

It is not a de Polignac number, because 545345530121501 - 2¹⁰ = 545345530120477 is a prime.

Together with 545345530121503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545345530121503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272672765060750 + 272672765060751.

It is an arithmetic number, because the mean of its divisors is an integer number (272672765060751).

Almost surely, 2^{545345530121501} is an apocalyptic number.

It is an amenable number.

545345530121501 is a deficient number, since it is larger than the sum of its proper divisors (1).

545345530121501 is an equidigital number, since it uses as much as digits as its factorization.

545345530121501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 545345530121501 in words is "five hundred forty-five trillion, three hundred forty-five billion, five hundred thirty million, one hundred twenty-one thousand, five hundred one".