545407147 has 4 divisors (see below), whose sum is σ = 564214320. Its totient is φ = 526599976.

The previous prime is 545407139. The next prime is 545407189. The reversal of 545407147 is 741704545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545407147 - 2³ = 545407139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545407117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9403543 + ... + 9403600.

It is an arithmetic number, because the mean of its divisors is an integer number (141053580).

Almost surely, 2^545407147 is an apocalyptic number.

545407147 is a deficient number, since it is larger than the sum of its proper divisors (18807173).

545407147 is a wasteful number, since it uses less digits than its factorization.

545407147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18807172.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 545407147 is about 23353.9535625127. The cubic root of 545407147 is about 817.0342732843.

The spelling of 545407147 in words is "five hundred forty-five million, four hundred seven thousand, one hundred forty-seven".