545322101 has 2 divisors, whose sum is σ = 545322102. Its totient is φ = 545322100.

The previous prime is 545322091. The next prime is 545322109. The reversal of 545322101 is 101223545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545269201 + 52900 = 23351^2 + 230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545322101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545322109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272661050 + 272661051.

It is an arithmetic number, because the mean of its divisors is an integer number (272661051).

Almost surely, 2^545322101 is an apocalyptic number.

It is an amenable number.

545322101 is a deficient number, since it is larger than the sum of its proper divisors (1).

545322101 is an equidigital number, since it uses as much as digits as its factorization.

545322101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 545322101 is about 23352.1326863308. The cubic root of 545322101 is about 816.9918040274.

Adding to 545322101 its reverse (101223545), we get a palindrome (646545646).

The spelling of 545322101 in words is "five hundred forty-five million, three hundred twenty-two thousand, one hundred one".