545021371 has 2 divisors, whose sum is σ = 545021372. Its totient is φ = 545021370.

The previous prime is 545021339. The next prime is 545021383. The reversal of 545021371 is 173120545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545021371 - 2⁵ = 545021339 is a prime.

It is not a weakly prime, because it can be changed into another prime (545022371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272510685 + 272510686.

It is an arithmetic number, because the mean of its divisors is an integer number (272510686).

Almost surely, 2^545021371 is an apocalyptic number.

545021371 is a deficient number, since it is larger than the sum of its proper divisors (1).

545021371 is an equidigital number, since it uses as much as digits as its factorization.

545021371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 545021371 is about 23345.6927719012. The cubic root of 545021371 is about 816.8415936453.

The spelling of 545021371 in words is "five hundred forty-five million, twenty-one thousand, three hundred seventy-one".