541329991 has 2 divisors, whose sum is σ = 541329992. Its totient is φ = 541329990.

The previous prime is 541329989. The next prime is 541330033. The reversal of 541329991 is 199923145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541329991 - 2¹ = 541329989 is a prime.

Together with 541329989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541329961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270664995 + 270664996.

It is an arithmetic number, because the mean of its divisors is an integer number (270664996).

Almost surely, 2^541329991 is an apocalyptic number.

541329991 is a deficient number, since it is larger than the sum of its proper divisors (1).

541329991 is an equidigital number, since it uses as much as digits as its factorization.

541329991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 541329991 is about 23266.4993284336. The cubic root of 541329991 is about 814.9932833451.

The spelling of 541329991 in words is "five hundred forty-one million, three hundred twenty-nine thousand, nine hundred ninety-one".