545272361 has 6 divisors (see below), whose sum is σ = 563430186. Its totient is φ = 527682000.

The previous prime is 545272337. The next prime is 545272363. The reversal of 545272361 is 163272545.

It can be written as a sum of positive squares in only one way, i.e., 539121961 + 6150400 = 23219^2 + 2480^2 .

It is a de Polignac number, because none of the positive numbers 2^k-545272361 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545272363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282740 + ... + 284661.

It is an arithmetic number, because the mean of its divisors is an integer number (93905031).

Almost surely, 2^545272361 is an apocalyptic number.

It is an amenable number.

545272361 is a deficient number, since it is larger than the sum of its proper divisors (18157825).

545272361 is an equidigital number, since it uses as much as digits as its factorization.

545272361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567463 (or 567432 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 545272361 is about 23351.0676629571. The cubic root of 545272361 is about 816.9669634131.

The spelling of 545272361 in words is "five hundred forty-five million, two hundred seventy-two thousand, three hundred sixty-one".