545381147 has 4 divisors (see below), whose sum is σ = 560121216. Its totient is φ = 530641080.

The previous prime is 545381141. The next prime is 545381159. The reversal of 545381147 is 741183545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545381147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545381147.

It is not an unprimeable number, because it can be changed into a prime (545381141) 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, 7369979 + ... + 7370052.

It is an arithmetic number, because the mean of its divisors is an integer number (140030304).

Almost surely, 2^545381147 is an apocalyptic number.

545381147 is a deficient number, since it is larger than the sum of its proper divisors (14740069).

545381147 is a wasteful number, since it uses less digits than its factorization.

545381147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14740068.

The product of its digits is 67200, while the sum is 38.

The square root of 545381147 is about 23353.3969049473. The cubic root of 545381147 is about 817.0212901831.

The spelling of 545381147 in words is "five hundred forty-five million, three hundred eighty-one thousand, one hundred forty-seven".