434545 has 8 divisors (see below), whose sum is σ = 525096. Its totient is φ = 345216.

The previous prime is 434521. The next prime is 434561. The reversal of 434545 is 545434.

434545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 14641 + 419904 = 121^2 + 648^2 .

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 434545 - 2¹³ = 426353 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

434545 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (65637).

2⁴³⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

434545 is a deficient number, since it is larger than the sum of its proper divisors (90551).

434545 is a wasteful number, since it uses less digits than its factorization.

434545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its digits is 4800, while the sum is 25.

The square root of 434545 is about 659.2002730582. The cubic root of 434545 is about 75.7434214607.

Adding to 434545 its reverse (545434), we get a palindrome (979979).

Subtracting 434545 from its reverse (545434), we obtain a square (110889 = 333²).

It can be divided in two parts, 434 and 545, that added together give a palindrome (979).

The spelling of 434545 in words is "four hundred thirty-four thousand, five hundred forty-five".