541303561 has 4 divisors (see below), whose sum is σ = 546093972. Its totient is φ = 536513152.

The previous prime is 541303549. The next prime is 541303571. The reversal of 541303561 is 165303145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122323600 + 418979961 = 11060^2 + 20469^2 .

It is not a de Polignac number, because 541303561 - 2¹¹ = 541301513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541303571) 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, 2395036 + ... + 2395261.

It is an arithmetic number, because the mean of its divisors is an integer number (136523493).

Almost surely, 2^541303561 is an apocalyptic number.

It is an amenable number.

541303561 is a deficient number, since it is larger than the sum of its proper divisors (4790411).

541303561 is a wasteful number, since it uses less digits than its factorization.

541303561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790410.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 541303561 is about 23265.9313374728. The cubic root of 541303561 is about 814.9800193328.

The spelling of 541303561 in words is "five hundred forty-one million, three hundred three thousand, five hundred sixty-one".