545448973 has 2 divisors, whose sum is σ = 545448974. Its totient is φ = 545448972.

The previous prime is 545448949. The next prime is 545448983. The reversal of 545448973 is 379844545.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435890884 + 109558089 = 20878^2 + 10467^2 .

It is a cyclic number.

It is not a de Polignac number, because 545448973 - 2²⁵ = 511894541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545448913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272724486 + 272724487.

It is an arithmetic number, because the mean of its divisors is an integer number (272724487).

Almost surely, 2^545448973 is an apocalyptic number.

It is an amenable number.

545448973 is a deficient number, since it is larger than the sum of its proper divisors (1).

545448973 is an equidigital number, since it uses as much as digits as its factorization.

545448973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 49.

The square root of 545448973 is about 23354.8490254165. The cubic root of 545448973 is about 817.0551582337.

The spelling of 545448973 in words is "five hundred forty-five million, four hundred forty-eight thousand, nine hundred seventy-three".