545021339 has 2 divisors, whose sum is σ = 545021340. Its totient is φ = 545021338.

The previous prime is 545021249. The next prime is 545021371. The reversal of 545021339 is 933120545.

It is an a-pointer prime, because the next prime (545021371) can be obtained adding 545021339 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545021339 - 2²⁰ = 543972763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545027339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272510669 + 272510670.

It is an arithmetic number, because the mean of its divisors is an integer number (272510670).

Almost surely, 2^545021339 is an apocalyptic number.

545021339 is a deficient number, since it is larger than the sum of its proper divisors (1).

545021339 is an equidigital number, since it uses as much as digits as its factorization.

545021339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 545021339 is about 23345.6920865499. The cubic root of 545021339 is about 816.8415776588.

The spelling of 545021339 in words is "five hundred forty-five million, twenty-one thousand, three hundred thirty-nine".