545967481 has 2 divisors, whose sum is σ = 545967482. Its totient is φ = 545967480.

The previous prime is 545967473. The next prime is 545967547. The reversal of 545967481 is 184769545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333391081 + 212576400 = 18259^2 + 14580^2 .

It is a cyclic number.

It is not a de Polignac number, because 545967481 - 2³ = 545967473 is a prime.

It is a super-2 number, since 2×545967481² = 596160980618970722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545964481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272983740 + 272983741.

It is an arithmetic number, because the mean of its divisors is an integer number (272983741).

Almost surely, 2^545967481 is an apocalyptic number.

It is an amenable number.

545967481 is a deficient number, since it is larger than the sum of its proper divisors (1).

545967481 is an equidigital number, since it uses as much as digits as its factorization.

545967481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The square root of 545967481 is about 23365.9470383719. The cubic root of 545967481 is about 817.3139758844.

The spelling of 545967481 in words is "five hundred forty-five million, nine hundred sixty-seven thousand, four hundred eighty-one".