545430401 has 4 divisors (see below), whose sum is σ = 550830804. Its totient is φ = 540030000.

The previous prime is 545430373. The next prime is 545430409. The reversal of 545430401 is 104034545.

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 496220176 + 49210225 = 22276^2 + 7015^2 .

It is a cyclic number.

It is not a de Polignac number, because 545430401 - 2²² = 541236097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545430409) 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, 2700050 + ... + 2700251.

It is an arithmetic number, because the mean of its divisors is an integer number (137707701).

Almost surely, 2^545430401 is an apocalyptic number.

It is an amenable number.

545430401 is a deficient number, since it is larger than the sum of its proper divisors (5400403).

545430401 is a wasteful number, since it uses less digits than its factorization.

545430401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400402.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 545430401 is about 23354.4514172352. The cubic root of 545430401 is about 817.0458848208.

Adding to 545430401 its reverse (104034545), we get a palindrome (649464946).

The spelling of 545430401 in words is "five hundred forty-five million, four hundred thirty thousand, four hundred one".