541303991 has 2 divisors, whose sum is σ = 541303992. Its totient is φ = 541303990.

The previous prime is 541303951. The next prime is 541304033. The reversal of 541303991 is 199303145.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541303991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541303951) 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 as a sum of consecutive naturals, namely, 270651995 + 270651996.

It is an arithmetic number, because the mean of its divisors is an integer number (270651996).

Almost surely, 2^541303991 is an apocalyptic number.

541303991 is a deficient number, since it is larger than the sum of its proper divisors (1).

541303991 is an equidigital number, since it uses as much as digits as its factorization.

541303991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 541303991 is about 23265.9405784507. The cubic root of 541303991 is about 814.9802351336.

The spelling of 541303991 in words is "five hundred forty-one million, three hundred three thousand, nine hundred ninety-one".