545434 has 4 divisors (see below), whose sum is σ = 818154. Its totient is φ = 272716.

The previous prime is 545429. The next prime is 545437. The reversal of 545434 is 434545.

545434 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It can be written as a sum of positive squares in only one way, i.e., 426409 + 119025 = 653^2 + 345^2 .

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

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 545399 and 545408.

It is not an unprimeable number, because it can be changed into a prime (545437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136357 + ... + 136360.

2⁵⁴⁵⁴³⁴ is an apocalyptic number.

545434 is a deficient number, since it is larger than the sum of its proper divisors (272720).

545434 is a wasteful number, since it uses less digits than its factorization.

545434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272719.

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

The square root of 545434 is about 738.5350364065. The cubic root of 545434 is about 81.7047681898.

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

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

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

The spelling of 545434 in words is "five hundred forty-five thousand, four hundred thirty-four".