545021851 has 8 divisors (see below), whose sum is σ = 594964800. Its totient is φ = 495144840.

The previous prime is 545021837. The next prime is 545021857. The reversal of 545021851 is 158120545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545021851 - 2⁹ = 545021339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545021857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680 + ... + 33058.

It is an arithmetic number, because the mean of its divisors is an integer number (74370600).

Almost surely, 2^545021851 is an apocalyptic number.

545021851 is a deficient number, since it is larger than the sum of its proper divisors (49942949).

545021851 is a wasteful number, since it uses less digits than its factorization.

545021851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32969.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 545021851 is about 23345.7030521679. The cubic root of 545021851 is about 816.8418334425.

The spelling of 545021851 in words is "five hundred forty-five million, twenty-one thousand, eight hundred fifty-one".