545421244 has 6 divisors (see below), whose sum is σ = 954487184. Its totient is φ = 272710620.

The previous prime is 545421187. The next prime is 545421257. The reversal of 545421244 is 442124545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68177652 + ... + 68177659.

Almost surely, 2^545421244 is an apocalyptic number.

It is an amenable number.

545421244 is a deficient number, since it is larger than the sum of its proper divisors (409065940).

545421244 is a wasteful number, since it uses less digits than its factorization.

545421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136355315 (or 136355313 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 545421244 is about 23354.2553724155. The cubic root of 545421244 is about 817.0413124495.

Adding to 545421244 its reverse (442124545), we get a palindrome (987545789).

The spelling of 545421244 in words is "five hundred forty-five million, four hundred twenty-one thousand, two hundred forty-four".