545323129 has 4 divisors (see below), whose sum is σ = 587271076. Its totient is φ = 503375184.

The previous prime is 545323111. The next prime is 545323133. The reversal of 545323129 is 921323545.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82083600 + 463239529 = 9060^2 + 21523^2 .

It is not a de Polignac number, because 545323129 - 2²³ = 536934521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545323094 and 545323103.

It is not an unprimeable number, because it can be changed into a prime (545323109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20973954 + ... + 20973979.

It is an arithmetic number, because the mean of its divisors is an integer number (146817769).

Almost surely, 2^545323129 is an apocalyptic number.

It is an amenable number.

545323129 is a deficient number, since it is larger than the sum of its proper divisors (41947947).

545323129 is a wasteful number, since it uses less digits than its factorization.

545323129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41947946.

The product of its digits is 32400, while the sum is 34.

The square root of 545323129 is about 23352.1546971580. The cubic root of 545323129 is about 816.9923174042.

It can be divided in two parts, 5453 and 23129, that added together give a palindrome (28582).

The spelling of 545323129 in words is "five hundred forty-five million, three hundred twenty-three thousand, one hundred twenty-nine".