541358861 has 4 divisors (see below), whose sum is σ = 549438912. Its totient is φ = 533278812.

The previous prime is 541358837. The next prime is 541358879. The reversal of 541358861 is 168853145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168853145 = 5 ⋅33770629.

It is a cyclic number.

It is not a de Polignac number, because 541358861 - 2¹⁰ = 541357837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541358161) 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, 4039925 + ... + 4040058.

It is an arithmetic number, because the mean of its divisors is an integer number (137359728).

Almost surely, 2^541358861 is an apocalyptic number.

It is an amenable number.

541358861 is a deficient number, since it is larger than the sum of its proper divisors (8080051).

541358861 is an equidigital number, since it uses as much as digits as its factorization.

541358861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080050.

The product of its digits is 115200, while the sum is 41.

The square root of 541358861 is about 23267.1197400968. The cubic root of 541358861 is about 815.0077713889.

The spelling of 541358861 in words is "five hundred forty-one million, three hundred fifty-eight thousand, eight hundred sixty-one".