541605421 has 16 divisors (see below), whose sum is σ = 649895040. Its totient is φ = 441524160.

The previous prime is 541605401. The next prime is 541605439. The reversal of 541605421 is 124506145.

It is not a de Polignac number, because 541605421 - 2⁷ = 541605293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 541605421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541605401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6310 + ... + 33511.

It is an arithmetic number, because the mean of its divisors is an integer number (40618440).

Almost surely, 2^541605421 is an apocalyptic number.

It is an amenable number.

541605421 is a deficient number, since it is larger than the sum of its proper divisors (108289619).

541605421 is a wasteful number, since it uses less digits than its factorization.

541605421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39924.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 541605421 is about 23272.4176011002. The cubic root of 541605421 is about 815.1314834225.

The spelling of 541605421 in words is "five hundred forty-one million, six hundred five thousand, four hundred twenty-one".