541321651 has 4 divisors (see below), whose sum is σ = 582961792. Its totient is φ = 499681512.

The previous prime is 541321643. The next prime is 541321663. The reversal of 541321651 is 156123145.

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

It is a cyclic number.

It is not a de Polignac number, because 541321651 - 2³ = 541321643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541321621) 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, 20820051 + ... + 20820076.

It is an arithmetic number, because the mean of its divisors is an integer number (145740448).

Almost surely, 2^541321651 is an apocalyptic number.

541321651 is a deficient number, since it is larger than the sum of its proper divisors (41640141).

541321651 is a wasteful number, since it uses less digits than its factorization.

541321651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41640140.

The product of its digits is 3600, while the sum is 28.

The square root of 541321651 is about 23266.3201000932. The cubic root of 541321651 is about 814.9890979259.

Adding to 541321651 its reverse (156123145), we get a palindrome (697444796).

The spelling of 541321651 in words is "five hundred forty-one million, three hundred twenty-one thousand, six hundred fifty-one".