541378321 has 6 divisors (see below), whose sum is σ = 595068866. Its totient is φ = 492162000.

The previous prime is 541378319. The next prime is 541378363. The reversal of 541378321 is 123873145.

It can be written as a sum of positive squares in only one way, i.e., 349278721 + 192099600 = 18689^2 + 13860^2 .

It is not a de Polignac number, because 541378321 - 2¹ = 541378319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541378121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2236980 + ... + 2237221.

Almost surely, 2^541378321 is an apocalyptic number.

It is an amenable number.

541378321 is a deficient number, since it is larger than the sum of its proper divisors (53690545).

541378321 is a wasteful number, since it uses less digits than its factorization.

541378321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474223 (or 4474212 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 541378321 is about 23267.5379230378. The cubic root of 541378321 is about 815.0175368528.

The spelling of 541378321 in words is "five hundred forty-one million, three hundred seventy-eight thousand, three hundred twenty-one".