541345531 has 4 divisors (see below), whose sum is σ = 541446472. Its totient is φ = 541244592.

The previous prime is 541345517. The next prime is 541345543. The reversal of 541345531 is 135543145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135543145 = 5 ⋅27108629.

It is a cyclic number.

It is not a de Polignac number, because 541345531 - 2⁹ = 541345019 is a prime.

It is a super-2 number, since 2×541345531² = 586109967867343922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 541345493 and 541345502.

It is not an unprimeable number, because it can be changed into a prime (541345561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41946 + ... + 53311.

It is an arithmetic number, because the mean of its divisors is an integer number (135361618).

Almost surely, 2^541345531 is an apocalyptic number.

541345531 is a deficient number, since it is larger than the sum of its proper divisors (100941).

541345531 is an equidigital number, since it uses as much as digits as its factorization.

541345531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100940.

The product of its digits is 18000, while the sum is 31.

The square root of 541345531 is about 23266.8332825935. The cubic root of 541345531 is about 815.0010819613.

Adding to 541345531 its reverse (135543145), we get a palindrome (676888676).

The spelling of 541345531 in words is "five hundred forty-one million, three hundred forty-five thousand, five hundred thirty-one".