541503321 has 16 divisors (see below), whose sum is σ = 728238720. Its totient is φ = 357897600.

The previous prime is 541503317. The next prime is 541503331. The reversal of 541503321 is 123305145.

It is not a de Polignac number, because 541503321 - 2² = 541503317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 541503291 and 541503300.

It is not an unprimeable number, because it can be changed into a prime (541503301) 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, 210996 + ... + 213546.

It is an arithmetic number, because the mean of its divisors is an integer number (45514920).

Almost surely, 2^541503321 is an apocalyptic number.

It is an amenable number.

541503321 is a deficient number, since it is larger than the sum of its proper divisors (186735399).

541503321 is a wasteful number, since it uses less digits than its factorization.

541503321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 541503321 is about 23270.2239138346. The cubic root of 541503321 is about 815.0802590738.

Adding to 541503321 its reverse (123305145), we get a palindrome (664808466).

The spelling of 541503321 in words is "five hundred forty-one million, five hundred three thousand, three hundred twenty-one".