545491327 has 2 divisors, whose sum is σ = 545491328. Its totient is φ = 545491326.

The previous prime is 545491241. The next prime is 545491339. The reversal of 545491327 is 723194545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545491327 - 2²³ = 537102719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545491327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545492327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272745663 + 272745664.

It is an arithmetic number, because the mean of its divisors is an integer number (272745664).

Almost surely, 2^545491327 is an apocalyptic number.

545491327 is a deficient number, since it is larger than the sum of its proper divisors (1).

545491327 is an equidigital number, since it uses as much as digits as its factorization.

545491327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 545491327 is about 23355.7557574145. The cubic root of 545491327 is about 817.0763057411.

The spelling of 545491327 in words is "five hundred forty-five million, four hundred ninety-one thousand, three hundred twenty-seven".