545011207 has 4 divisors (see below), whose sum is σ = 586935160. Its totient is φ = 503087256.

The previous prime is 545011199. The next prime is 545011249. The reversal of 545011207 is 702110545.

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 545011207 - 2³ = 545011199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545011277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20961957 + ... + 20961982.

It is an arithmetic number, because the mean of its divisors is an integer number (146733790).

Almost surely, 2^545011207 is an apocalyptic number.

545011207 is a deficient number, since it is larger than the sum of its proper divisors (41923953).

545011207 is a wasteful number, since it uses less digits than its factorization.

545011207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41923952.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 545011207 is about 23345.4750861918. The cubic root of 545011207 is about 816.8365159058.

The spelling of 545011207 in words is "five hundred forty-five million, eleven thousand, two hundred seven".