541729081 has 2 divisors, whose sum is σ = 541729082. Its totient is φ = 541729080.

The previous prime is 541729063. The next prime is 541729087. The reversal of 541729081 is 180927145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396647056 + 145082025 = 19916^2 + 12045^2 .

It is a cyclic number.

It is not a de Polignac number, because 541729081 - 2¹⁹ = 541204793 is a prime.

It is a super-2 number, since 2×541729081² = 586940794402209122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 541729081.

It is not a weakly prime, because it can be changed into another prime (541729087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270864540 + 270864541.

It is an arithmetic number, because the mean of its divisors is an integer number (270864541).

Almost surely, 2^541729081 is an apocalyptic number.

It is an amenable number.

541729081 is a deficient number, since it is larger than the sum of its proper divisors (1).

541729081 is an equidigital number, since it uses as much as digits as its factorization.

541729081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 541729081 is about 23275.0742426313. The cubic root of 541729081 is about 815.1935159679.

The spelling of 541729081 in words is "five hundred forty-one million, seven hundred twenty-nine thousand, eighty-one".