545420347 has 2 divisors, whose sum is σ = 545420348. Its totient is φ = 545420346.

The previous prime is 545420287. The next prime is 545420399. The reversal of 545420347 is 743024545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545420347 is a prime.

It is not a weakly prime, because it can be changed into another prime (545420047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272710173 + 272710174.

It is an arithmetic number, because the mean of its divisors is an integer number (272710174).

Almost surely, 2^545420347 is an apocalyptic number.

545420347 is a deficient number, since it is larger than the sum of its proper divisors (1).

545420347 is an equidigital number, since it uses as much as digits as its factorization.

545420347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 545420347 is about 23354.2361681987. The cubic root of 545420347 is about 817.0408645471.

The spelling of 545420347 in words is "five hundred forty-five million, four hundred twenty thousand, three hundred forty-seven".