545410221 has 8 divisors (see below), whose sum is σ = 752290080. Its totient is φ = 351068592.

The previous prime is 545410193. The next prime is 545410223. The reversal of 545410221 is 122014545.

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

It is not a de Polignac number, because 545410221 - 2⁶ = 545410157 is a prime.

It is a super-3 number, since 3×545410221³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545410191 and 545410200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545410223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3134455 + ... + 3134628.

It is an arithmetic number, because the mean of its divisors is an integer number (94036260).

Almost surely, 2^545410221 is an apocalyptic number.

It is an amenable number.

545410221 is a deficient number, since it is larger than the sum of its proper divisors (206879859).

545410221 is a wasteful number, since it uses less digits than its factorization.

545410221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269115.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 545410221 is about 23354.0193756878. The cubic root of 545410221 is about 817.0358082591.

Adding to 545410221 its reverse (122014545), we get a palindrome (667424766).

The spelling of 545410221 in words is "five hundred forty-five million, four hundred ten thousand, two hundred twenty-one".